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In this article the author reviews research evidence on the prevalence of mental disorders in lesbians, gay men, and bisexuals (LGBs) and shows, using meta-analyses, that LGBs have a higher prevalence of mental disorders than heterosexuals. The author offers a conceptual framework for understanding this excess in prevalence of disorder in terms of minority stress—explaining that stigma, prejudice, and discrimination create a hostile and stressful social environment that causes mental health problems. The model describes stress processes, including the experience of prejudice events, expectations of rejection, hiding and concealing, internalized homophobia, and ameliorative coping processes. This conceptual framework is the basis for the review of research evidence, suggestions for future research directions, and exploration of public policy implications.

The stress concept

In its most general form, recent stress discourse has been concerned with external events or conditions that are taxing to individuals and exceed their capacity to endure, therefore having potential to induce mental or somatic illness (Dohrenwend, 2000). Stress can be described as “any condition having the potential to arouse the adaptive machinery of the individual” (Pearlin, 1999a, p. 163). This general form also reflects the phenomenological meaning of stress, which refers to physical, mental, or emotional pressure, strain, or tension (Random House Webster’s Dictionary, 1992). Some have used an engineering analogy, explaining that stress can be assessed as a load relative to a supportive surface (Wheaton, 1999). Stress researchers have identified both individual and social stressors. In psychological literature, stressors are defined as events and conditions (e.g., losing a job, death of an intimate) that cause change and that require that the individual adapt to the new situation or life circumstance. Stress researchers have studied traumatic events, eventful life stressors, chronic stress, and role strains, as well as daily hassles and even nonevents as varied components of stress (Dohrenwend, 1998a).

The concept of social stress extends stress theory by suggesting that conditions in the social environment, not only personal events, are sources of stress that may lead to mental and physical ill effects. Social stress might therefore be expected to have a strong impact in the lives of people belonging to stigmatized social categories, including categories related to socioeconomic status, race/ethnicity, gender, or sexuality. According to these formulations, prejudice and discrimination related to low socioeconomic status, racism, sexism, or homophobia—much like the changes precipitated by personal life events that are common to all people—can induce changes that require adaptation and can therefore be conceptualized as stressful (Allison, 1998Barnett, Biener, & Baruch, 1987Clark, Anderson, Clark, & Williams, 1999Meyer, 1995Mirowsky & Ross, 1989Pearlin, 1999b).

The notion that stress is related to social structures and conditions is at once intuitively appealing and conceptually difficult. It is appealing because it recalls the commonplace experience that environmental and social conditions can be stressful. Also, it rests on rich foundations of psychological and sociological theory that suggest the person must be seen in his or her interactions with the social environment (Allport, 1954). It is conceptually difficult because the notion of stress, in particular as conceived of by Lazarus and Folkman (1984), has focused on personal rather than social elements (Hobfoll, 1998). I return to the discussion of this tension between the social and the personal, or objective and subjective, conceptualizations of stress.

Empirical evidence for minority stress in lgb populations

In exploring evidence for minority stress two methodological approaches can be discerned: studies that examined within-group processes and their impact on mental health and studies that compared differences between minority and nonminority groups in prevalence of mental disorders. Studies of within-group processes shed light on stress processes, such as those depicted in Figure 1, by explicitly examining them and describing variability in their impact on mental health outcomes among minority group members. For example, such studies may describe whether LGB people who have experienced antigay discrimination suffer greater adverse mental health impact than LGB people who have not experienced such stress (Herek, Gillis, & Cogan, 1999). Studies of between-groups differences test whether minority individuals are at greater risk for disease than nonminority individuals; that is, whether LGB individuals have higher prevalences of disorders than heterosexual individuals. On the basis of minority stress formulations one can hypothesize that LGB people would have higher prevalences of disorders because the putative excess in exposure to stress would cause an increase in prevalence of any disorder that is affected by stress (Dohrenwend, 2000). Typically, in studying between-groups differences, only the exposure (minority status) and outcomes (prevalences of disorders) are assessed; minority stress processes that would have led to the elevation in prevalences of disorders are inferred but unexamined. Thus, within-group evidence illuminates the workings of minority stress processes; between-groups evidence shows the hypothesized resultant difference in prevalence of disorder. Ideally, evidence from both types of studies would converge.

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What is hocd?

Homosexual OCD – also known as sexual orientation OCD, is seen in individuals (straight, gay, or bisexual) who develop obsessive thoughts, plagued by an intense (unwarranted) fear and doubt over their long-standing sexual orientation. These individuals fear that they may be sexually attracted to the same sex (if they are heterosexual), or attracted to the opposite sex (if they are already gay), even though their sexual desires and underlying orientation indicate otherwise. Usually, their obsessive gay thoughts are followed with compulsive checking behaviours that allude any evidence as ‘proof’ that their thoughts and fears are in fact real.

As with other forms of OCD where individuals experience unwanted and intrusive thoughts that are contrived as irrational, and are usually accompanied by compulsive acts or urges – the obsessions individuals with HOCD experience are also unwanted thoughts, however these are focused mainly on the more realistic fear and uncertainty about their sexuality. The sexual obsessions involved in HOCD are typically associated with high levels of shame and guilt for the individual, and for this reason, are often kept hidden from others. Self-denial and confusion is also typical – subsequently creating an appropriate motive for not seeking appropriate help and treatment. Importantly, HOCD is not about homophobia – individuals with HOCD usually aren’t troubled by the concept of homosexuality in others, however the thought of themselves being gay (or straight if the person is gay), is extremely distressing. The main reason for this is the consequences of what it may mean for them. For example, a person who is in a loving committed relationship may experience the thought, “if these thoughts were true I would have to leave this relationship”. Therefore, their fear is not about being straight or gay – but more that they would lose the one they truly love. This article will help to explain some of the different forms of HOCD, and the common symptoms associated with each, including the various treatment approaches that can be taken.

What are the different types of hocd?

It is important to acknowledge that HOCD involves obsessions, followed by urges (compulsions) that are geared toward doubts and fears surrounding their sexual orientation. The fears are ego-dystonic (separate from the self), not ego-syntonic (confusion about sexuality). Hence the categories of HOCD listed below are not conclusive, and those with HOCD may experience and identify with a number of these categories and many more.

Individuals with this form of HOCD usually report of having been the same sexual orientation their whole life, or having never experienced gay fantasies or thoughts cross their mind before. Their fear usually begins with having one ‘gay’ thought or emotion pass over them, to which they payed extreme attention to and sought meaning for. Individuals with all or nothing HOCD, hold the distorted belief that having any gay thoughts must be an indication that they are in fact gay. In an attempt to ‘prove’ to themselves that they are straight, they may engage in various compulsive behaviours, such as, masturbation rituals to opposite sex fantasies, or extreme avoidance measures of objects or people of which the individual associates with homosexuality.

Relationship OCD, (otherwise known as ROCD) is described when individuals blame their past relationship failures, on the belief that they ‘must be gay’ because they’re previous relationships just haven’t worked out. Common examples include not feeling sexually attracted to their sexual partner, or not having experienced love in their past romantic relationships. This concept is usually associated with individuals feeling as though they don’t relate to the opposite sex – using this as evidence that they are gay. In this case, individuals will usually over attend to their interactions with the same sex – evaluating them to be more understanding and more satisfying to spend time with. As a result, this causes the individual to fearfully question their sexuality.

Individuals who develop this form of HOCD typically have little self- worth (which may have resulted from previous abusive relationships, traumatic experiences, or severe mistreatment in the past), and usually co-insides with depression. Those with self-hating HOCD typify their perceived wrongdoings, to the analogy that they are gay- wherein this association is directed as a form of self-insult (not as the actual fear of becoming their opposing sexual orientation). This therefore substantiates their distorted belief that they are in fact ‘unlovable’ and unattractive to their desired orientation.

This form of HOCD is generally associated with the individual’s perception of stereotypical expectations that are placed upon masculinity and femininity within society. Generally speaking, the individual believes that any incongruence (with their thoughts or behaviours) of their expected gender role, is a sign of gender ‘weakness’ and therefore an (unwarranted) indication of their sexual orientation. For example, a male who finds another male as attractive, may fear that ‘real men’ only think women are attractive – this therefore invokes their though: ‘I must be gay’

This form of HOCD is when individuals experience sexual arousal / groinal responses, in situations that do not conform to what they believe to be appropriate circumstances in line with their sexual preference. As these individuals begin to place more awareness on their groinal areas it only heightens their sensitivity, working to actually provoke increased sensation in this area. Individuals with groinal response HOCD believe that any groinal response or feeling of sexual arousal, in circumstances conflicting with their orientation, must be proof that they are gay – regardless of the fact that they have no desire for sex with the same gender.

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What does treatment involve?

Treatment for HOCD involves Cognitive Behavioural Therapy (CBT), including gradual exposure therapy to the individual’s irrational homosexual thoughts and fears. It is important to acknowledge that the exposure component involved in treatment does not involve encouraging the individual to engage in homosexual activities, but instead, to instances that invoke their obsessive thoughts and compulsions.

Minority stress

One elaboration of social stress theory may be referred to as minority stress to distinguish the excess stress to which individuals from stigmatized social categories are exposed as a result of their social, often a minority, position. The foundation for a model of minority stress is not found in one theory, nor is the term minority stress commonly used. Rather, a minority stress model is inferred from several sociological and social psychological theories. Relevant theories discuss the adverse effect of social conditions, such as prejudice and stigma, on the lives of affected individuals and groups (e.g., Allport, 1954Crocker, Major, & Steele, 1998Goffman, 1963Jones et al., 1984Link & Phelan, 2001).

Social theorists have been concerned with the alienation from social structures, norms, and institutions. For example, the importance of social environment was central to Durkheim’s (1951) study of normlessness as a cause of suicide. According to Durkheim, people need moral regulation from society to manage their own needs and aspirations. Anomie, a sense of normlessness, lack of social control, and alienation can lead to suicide because basic social needs are not met. Pearlin (1982) has emphasized the relevance of Merton’s (1957/1968) work to stress theory, explaining that “according to Merton, society stands as a stressor … by stimulating values that conflict with the structures in which they are to be acted upon” (p. 371). The minority person is likely to be subject to such conflicts because dominant culture, social structures, and norms do not typically reflect those of the minority group. An example of such a conflict between dominant and minority groups is the lack of social institutions akin to heterosexual marriage offering sanction for family life and intimacy of LGB persons. More generally, Moss (1973) explained that interactions with society provide the individual with information on the construction of the world; health is compromised when such information is incongruent with the minority person’s experience in the world.

Social psychological theories provide a rich ground for understanding intergroup relations and the impact of minority position on health. Social identity and self-categorization theories extend psychological understanding of intergroup relations and their impact on the self. These theories posit that the process of categorization (e.g., distinction among social groups) triggers important intergroup processes (e.g., competition and discrimination) and provides an anchor for group and self-definition (Tajfel & Turner, 1986Turner, 1999). From a different perspective, social comparison and symbolic interaction theorists view the social environment as providing people with meaning to their world and organization to their experiences (Stryker & Statham, 1985). Interactions with others are therefore crucial for the development of a sense of self and well-being. Cooley (1902/1922) referred to the other as the “looking glass” (p. 184) of the self. Symbolic interaction theories thus suggest that negative regard from others leads to negative self-regard. Similarly, the basic tenet of social evaluation theory is that human beings learn about themselves by comparing themselves with others (Pettigrew, 1967). Both these theoretical perspectives suggest that negative evaluation by others—such as stereotypes and prejudice directed at minority persons in society—may lead to adverse psychological outcomes. Similarly, Allport (1954) described prejudice as a noxious environment for the minority person and suggested that it leads to adverse effects. In discussing these effects, which he called “traits due to victimizations,” (p. 142) Allport (1954) suggested that the relationship between negative regard from others and harm to the minority person is self-evident: “One’s reputation, whether false or true, cannot be hammered, hammered, hammered, into one’s head without doing something to one’s character” (p. 142).

Beyond theoretical variations, a unifying concept may emerge from stress theory. Lazarus and Folkman (1984) described a conflict or “mismatch” (p. 234) between the individual and his or her experience of society as the essence of all social stress, and Pearlin (1999b)Selye (1982) described a sense of harmony with one’s environment as the basis of healthy living; deprivation of such a sense of harmony may be considered the source of minority stress. Certainly, when the individual is a member of a stigmatized minority group, the disharmony between the individual and the dominant culture can be onerous and the resultant stress significant (Allison, 1998Clark et al., 1999). I discuss other theoretical orientations that help explain minority stress below in reviewing specific minority stress processes.

American history is rife with narratives recounting the ill effects of prejudice toward members of minority groups and of their struggles to gain freedom and acceptance. That such conditions are stressful has been suggested regarding various social categories, in particular for groups defined by race/ethnicity and gender (Barnett & Baruch, 1987Mirowsky & Ross, 1989Pearlin, 1999bSwim, Hyers, Cohen, & Ferguson, 2001). The model has also been applied to groups defined by stigmatizing characteristics, such as heavyweight people (Miller & Myers, 1998), people with stigmatizing physical illnesses such as AIDS and cancer (Fife & Wright, 2000), and people who have taken on stigmatizing marks such as body piercing (Jetten, Branscombe, Schmitt, & Spears, 2001). Yet, it is only recently that psychological theory has incorporated these experiences into stress discourse explicitly (Allison, 1998Miller & Major, 2000). There has been increased interest in the minority stress model, for example, as it applies to the social environment of Blacks in the United States and their experience of stress related to racism (Allison, 1998Clark et al., 1999).

In developing the concept of minority stress, researchers’ underlying assumptions have been that minority stress is (a) unique—that is, minority stress is additive to general stressors that are experienced by all people, and therefore, stigmatized people are required an adaptation effort above that required of similar others who are not stigmatized; (b) chronic—that is, minority stress is related to relatively stable underlying social and cultural structures; and (c) socially based—that is, it stems from social processes, institutions, and structures beyond the individual rather than individual events or conditions that characterize general stressors or biological, genetic, or other nonsocial characteristics of the person or the group.

Reviewing the literature on stress and identity, Thoits (1999) called the investigation of stressors related to minority identities a “crucial next step” (p. 361) in the study of identity and stress. Applied to lesbians, gay men, and bisexuals, a minority stress model posits that sexual prejudice (Herek, 2000) is stressful and may lead to adverse mental health outcomes (Brooks, 1981Cochran, 2001DiPlacido, 1998Krieger & Sidney, 1997Mays & Cochran, 2001Meyer, 1995).

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Minority stress processes in lgb populations

There is no consensus about specific stress processes that affect LGB people, but psychological theory, stress literature, and research on the health of LGB populations provide some ideas for articulating a minority stress model. I suggest a distal–proximal distinction because it relies on stress conceptualizations that seem most relevant to minority stress and because of its concern with the impact of external social conditions and structures on individuals. Lazarus and Folkman (1984) described social structures as “distal concepts whose effects on an individual depend on how they are manifested in the immediate context of thought, feeling, and action—the proximal social experiences of a person’s life” (p. 321). Distal social attitudes gain psychological importance through cognitive appraisal and become proximal concepts with psychological importance to the individual. Crocker et al. (1998) made a similar distinction between objective reality, which includes prejudice and discrimination, and “states of mind that the experience of stigma may create in the stigmatized” (p. 516). They noted that “states of mind have their grounding in the realities of stereotypes, prejudice, and discrimination” (Crocker et al., 1998, p. 516), again echoing Lazarus and Folkman’s conceptualization of the proximal, subjective appraisal as a manifestation of distal, objective environmental conditions. I describe minority stress processes along a continuum from distal stressors, which are typically defined as objective events and conditions, to proximal personal processes, which are by definition subjective because they rely on individual perceptions and appraisals.

I have previously suggested three processes of minority stress relevant to LGB individuals (Meyer, 1995Meyer & Dean, 1998). From the distal to the proximal they are (a) external, objective stressful events and conditions (chronic and acute), (b) expectations of such events and the vigilance this expectation requires, and (c) the internalization of negative societal attitudes. Other work, in particular psychological research in the area of disclosure, has suggested that at least one more stress process is important: concealment of one’s sexual orientation. Hiding of sexual orientation can be seen as a proximal stressor because its stress effect is thought to come about through internal psychological (including psychoneuroimmunological) processes (Cole, Kemeny, Taylor, & Visscher, 1996a1996bDiPlacido, 1998Jourard, 1971Pennebaker, 1995).

Distal minority stressors can be defined as objective stressors in that they do not depend on an individual’s perceptions or appraisals—although certainly their report depends on perception and attribution (Kobrynowicz & Branscombe, 1997Operario & Fiske, 2001). As objective stressors, distal stressors can be seen as independent of personal identification with the assigned minority status (Diamond, 2000). For example, a woman may have a romantic relationship with another woman but not identify as a lesbian (Laumann, Gagnon, Michael, & Michaels, 1994). Nevertheless, if she is perceived as a lesbian by others, she may suffer from stressors associated with prejudice toward LGB people (e.g., antigay violence). In contrast, the more proximal stress processes are more subjective and are therefore related to self-identity as lesbian, gay, or bisexual. Such identities vary in the social and personal meanings that are attached to them and in the subjective stress they entail. Minority identity is linked to a variety of stress processes; some LGB people, for example, may be vigilant in interactions with others (expectations of rejection), hide their identity for fear of harm (concealment), or internalize stigma (internalized homophobia).

Stress-ameliorating factors

As early as 1954, Allport suggested that minority members respond to prejudice with coping and resilience. Modern writers have agreed that positive coping is common and beneficial to members of minority groups (Clark et al., 1999). Therefore, minority status is associated not only with stress but with important resources such as group solidarity and cohesiveness that protect minority members from the adverse mental health effects of minority stress (Branscombe, Schmitt, & Harvey, 1999Clark et al., 1999Crocker & Major, 1989Kessler, Price, & Wortman, 1985Miller & Major, 2000Postmes & Branscombe, 2002Shade, 1990). Empirical evidence supports these contentions. For example, in a study of Black participants Branscombe, Schmitt, and Harvey (1999) found that attributions of prejudice were directly related to negative well-being and hostility toward Whites but also, through the mediating role of enhanced in-group identity, to positive well-being. In a separate study, Postmes and Branscombe (2002) found that among Blacks, a racially segregated environment contributed to greater in-group acceptance and improved well-being and life satisfaction.

The importance of coping with stigma has also been asserted in LGB populations. Weinberg and Williams (1974) noted that “occupying a ‘deviant status’ need not necessarily intrude upon [gay men’s] day-to-day functioning” (p. 150) and urged scientists to “pay more attention to the human capacity for adaptation” (p. 151). Through coming out, LGB people learn to cope with and overcome the adverse effects of stress (Morris, Waldo, & Rothblum, 2001). Thus, stress and resilience interact in predicting mental disorder. LGB people counteract minority stress by establishing alternative structures and values that enhance their group (Crocker & Major, 1989D’Emilio, 1983). In a similar vein, Garnets, Herek, and Levy (1990) suggested that although antigay violence creates a crisis with potential adverse mental health outcomes, it also presents “opportunities for subsequent growth” (p. 367). Among gay men, personal acceptance of one’s gay identity and talking to family members about AIDS showed the strongest positive associations with concurrent measures of support and changes in support satisfaction (Kertzner, 2001). Similarly, in a study of LGB adolescents, family support and self-acceptance ameliorated the negative effect of antigay abuse on mental health outcomes (Hershberger & D’Augelli, 1995).

A distinction between personal and group resources is often not addressed in the coping literature. It is important to distinguish between resources that operate on the individual level (e.g., personality), in which members of minority groups vary, and resources that operate on a group level and are available to all minority members (Branscombe & Ellemers, 1998). Like other individuals who cope with general stress, LGB people use a range of personal coping mechanisms, resilience, and hardiness to withstand stressful experiences (Antonovsky, 1987Masten, 2001Ouellette, 1993). But in addition to such personal coping, group-level social structural factors can have mental health benefits (Peterson, Folkman, & Bakeman, 1996). Jones et al. (1984) described two functions of coping achieved through minority group affiliations: to allow stigmatized persons to experience social environments in which they are not stigmatized by others and to provide support for negative evaluation of the stigmatized minority group. Social evaluation theory suggests another plausible mechanism for minority coping (Pettigrew, 1967). Members of stigmatized groups who have a strong sense of community cohesiveness evaluate themselves in comparison with others who are like them rather than with members of the dominant culture. The in-group may provide a reappraisal of the stressful condition, yielding it less injurious to psychological well-being. Through reappraisal, the in-group validates deviant experiences and feelings of minority persons (Thoits, 1985). Indeed, reappraisal is at the core of gay-affirmative, Black, and feminist psychotherapies that aim to empower the minority person (Garnets & Kimmel, 1991hooks, 1993Shade, 1990Smith & Siegel, 1985).

The distinction between personal and group-level coping may be somewhat complicated because even group-level resources (e.g., services of a gay-affirmative church) need to be accessed and used by individuals. Whether individuals can access and use group-level resources depends on many factors, including personality variables. Nevertheless, it is important to distinguish between group-level and personal resources because when group-level resources are absent, even otherwise-resourceful individuals have deficient coping. Group-level resources may therefore define the boundaries of individual coping efforts. Thus, minority coping may be conceptualized as a group-level resource, related to the group’s ability to mount self-enhancing structures to counteract stigma. This formulation highlights the degree to which minority members may be able to adopt some of the group’s self-enhancing attitudes, values, and structures rather than the degree to which individuals vary in their personal coping abilities. Using this distinction, it is conceivable that an individual may have efficient personal coping resources but lack minority-coping resources. For example, a lesbian or gay member of the U.S. Armed Forces, where a “don’t ask, don’t tell” policy discourages affiliation and attachments with other LGB persons, may be unable to access and use group-level resources and therefore be vulnerable to adverse health outcomes, regardless of his or her personal coping abilities. Finally, it is important to note that coping can also have a stressful impact (Miller & Major, 2000). For example, concealing one’s stigma is a common way of coping with stigma and avoiding negative regard, yet it takes a heavy toll on the person using this coping strategy (Smart & Wegner, 2000).

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Stress and identity

Characteristics of minority identity—for example, the prominence of minority identity in the person’s sense of self—may also be related to minority stress and its impact on health outcomes. Group identities are essential for individual emotional functioning, as they address conflicting needs for individuation and affiliation (Brewer, 1991). Characteristics of identity may be related to mental health both directly and in interaction with stressors. A direct effect suggests that identity characteristics can cause distress. For example, Burke (1991) said that feedback from others that is incompatible with one’s self-identity—a process he called identity interruptions—can cause distress. An interactive effect with stress suggests that characteristics of identity would modify the effect of stress on health outcomes. For example, Linville (1987) found that participants with more complex self-identities were less prone to depression in the face of stress. Thoits (1999) explained, “Since people’s self conceptions are closely linked to their psychological states, stressors that damage or threaten self concepts are likely to predict emotional problems” (p. 346). On the other hand, as described above, minority identity may also lead to stronger affiliations with one’s community, which may in turn aid in buffering the impact of stress (Branscombe, Schmitt, & Harvey, 1999Brown, Sellers, Brown, & Jackson, 1999Crocker & Major, 1989).

Prominence (or salience), valence, and level of integration with the individual’s other identities may be relevant to stress (Deaux, 1993Rosenberg & Gara, 1985Thoits, 19911999). Prominence of identity may exacerbate stress because “the more an individual identifies with, is committed to, or has highly developed self-schemas in a particular life domain, the greater will be the emotional impact of stressors that occur in that domain” (Thoits, 1999, p. 352). In coming out models, and in some models of racial identity, there has been a tendency to see minority identity as prominent and ignore other personal and social identities (Cross, 1995de Monteflores & Schultz, 1978Eliason, 1996). However minority identities, which may seem prominent to observers, are often not endorsed as prominent by minority group members themselves, leading to variability in identity hierarchies of minority persons (Massey & Ouellette, 1996). For example, Brooks (1981) noted that the stress process for lesbians is complex because it involves both sexual and gender identities. LGB members of racial/ethnic minorities also need to manage diverse identities. Research on Black and Latino LGB individuals has shown that they often confront homophobia in their racial/ethnic communities and alienation from their racial/ethnic identity in the LGB community (Diaz, Ayala, Bein, Jenne, & Marin, 2001Espin, 1993Loiacano, 1993). Rather than view identity as stable, researchers now view identity structures as fluid, with prominence of identity often shifting with social context (Brewer, 1991Crocker & Quinn, 2000Deaux & Ethier, 1998).

Valence refers to the evaluative features of identity and is tied to self-validation. Negative valence has been described as a good predictor of mental health problems, with an inverse relationship to depression (Allen, Woolfolk, Gara, & Apter, 1999Woolfolk, Novalany, Gara, Allen, & Polino, 1995). Identity valence is a central feature of coming out models, which commonly describe progress as improvement in self-acceptance and diminishment of internalized homophobia. Thus, overcoming negative self-evaluation is the primary aim of the LGB person’s development in coming out and is a central theme of gay-affirmative therapies (Coleman, 1981–1982Diaz et al., 2001Loiacano, 1993Malyon, 1981–1982Meyer & Dean, 1998Rotheram-Borus & Fernandez, 1995Troiden, 1989).

Finally, more complex identity structures may be related to improved health outcomes. Distinct identities are interrelated through a hierarchal organization (Linville, 1987Rosenberg & Gara, 1985). In coming out models, integration of the minority identity with the person’s other identities is seen as the optimal stage related to self-acceptance. For example, Cass (1979) saw the last stage of coming out as an identity synthesis, wherein the gay identity becomes merely one part of this integrated total identity. In a optimal identity development, various aspects of the person’s self, including but not limited to other minority identities such as those based on gender or race/ethnicity, are integrated (Eliason, 1996).

Summary: a minority stress model

Using the distal–proximal distinction, I propose a minority stress model that incorporates the elements discussed above. In developing the model I have emulated Dohrenwend’s (1998b2000) stress model to highlight minority stress processes. Dohrenwend (1998b2000) described the stress process within the context of strengths and vulnerabilities in the larger environment and within the individual. For the purpose of succinctness, I include in my discussion only those elements of the stress process unique to or necessary for the description of minority stress. It is important to note, however, that these omitted elements—including advantages and disadvantages in the wider environment, personal predispositions, biological background, ongoing situations, and appraisal and coping—are integral parts of the stress model and are essential for a comprehensive understanding of the stress process (Dohrenwend, 1998b2000).

The model (Figure 1) depicts stress and coping and their impact on mental health outcomes (box i). Minority stress is situated within general environmental circumstances (box a), which may include advantages and disadvantages related to factors such as socioeconomic status. An important aspect of these circumstances in the environment is the person’s minority status, for example being gay or lesbian (box b). These are depicted as overlapping boxes in the figure to indicate close relationship to other circumstances in the person’s environment. For example, minority stressors for a gay man who is poor would undoubtedly be related to his poverty; together these characteristics would determine his exposure to stress and coping resources (Diaz et al., 2001). Circumstances in the environment lead to exposure to stressors, including general stressors, such as a job loss or death of an intimate (box c), and minority stressors unique to minority group members, such as discrimination in employment (box d). Similar to their source circumstances, the stressors are depicted as overlapping as well, representing their interdependency (Pearlin, 1999b). For example, an experience of antigay violence (box d) is likely to increase vigilance and expectations of rejection (box f). Often, minority status leads to personal identification with one’s minority status (box e). In turn, such minority identity leads to additional stressors related to the individual’s perception of the self as a stigmatized and devalued minority (Miller & Major, 2000). Because they involve self-perceptions and appraisals, these minority stress processes are more proximal to the individual, including, as described above for LGB individuals, expectations of rejection, concealment, and internalized homophobia (box f).

Minority stress processes in lesbian, gay, and bisexual populations.

Of course, minority identity is not only a source of stress but also an important effect modifier in the stress process. First, characteristics of minority identity can augment or weaken the impact of stress (box g). For example, minority stressors may have a greater impact on health outcomes when the LGB identity is prominent than when it is secondary to the person’s self-definition (Thoits, 1999). Second, LGB identity may also be a source of strength (box h) when it is associated with opportunities for affiliation, social support, and coping that can ameliorate the impact of stress (Branscombe, Schmitt, & Harvey, 1999Crocker & Major, 1989Miller & Major, 2000).

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Research evidence: between-groups studies of prevalence of mental disorder

Despite a long history of interest in the prevalence of mental disorders among gay men and lesbians, methodologically sound epidemiological studies are rare. The interest in mental health of lesbians and gay men has been clouded by shifts in the social environment within which it was embedded. Before the 1973 declassification of homosexuality as a mental disorder, gay-affirmative psychologists and psychiatrists sought to refute arguments that homosexuality should remain a classified disorder by showing that homosexuals were not more likely to be mentally ill than heterosexuals (Bayer, 1981). At the time, some writers insisted that homosexuals were more likely than heterosexuals to be ill and that this demonstrated that homosexuality should be classified as a mental disorder, but many of these studies were based on biased samples, for example of prison populations or clinical (primarily psychoanalytic) observations (Marmor, 1980). An exception to authors of earlier studies is Evelyn Hooker, who in several studies that became influential during the debate on the status of homosexuality, found that homosexual and heterosexual subjects were indistinguishable in psychological projective testing (e.g., Hooker, 1957).

Most of the early studies used symptom scales that assessed psychiatric symptoms rather than prevalence of classified disorders. An exception was a study by Saghir, Robins, Welbran, and Gentry (1970a, 1970b), which assessed criteria-defined prevalences of mental disorders among gay men and lesbians as compared with heterosexual men and women. The authors found “surprisingly few differences in manifest psychopathology” between homosexuals and heterosexuals (Saghir et al., 1970a, p. 1084). In the social atmosphere of the time, research findings were interpreted by gay-affirmative researchers conservatively, so as to not erroneously suggest that lesbians and gay men had high prevalences of disorder. Thus, although Saghir and colleagues (1970a) were careful not to claim that gay men had higher prevalences of mental disorders than heterosexual men, they noted that they did find “that whenever differences existed they showed the homosexual men having more difficulties than the heterosexual controls,” including, “a slightly greater overall prevalence of psychiatric disorder” (p. 1084). Among studies that assessed symptomatology, several showed slight elevation of psychiatric symptoms among LGB people, although these levels were typically within a normal range (see Gonsiorek, 1991Marmor, 1980). Thus, most reviewers have concluded that research evidence has conclusively shown that homosexuals did not have abnormally elevated psychiatric symptomatology compared with heterosexuals (see Marmor, 1980). This conclusion has been widely accepted and has been often restated in most current psychological and psychiatric literature (Cabaj & Stein, 1996Gonsiorek, 1991).

More recently, there has been a shift in the popular and scientific discourse on the mental health of lesbians and gay men. Gay-affirmative advocates have begun to advance a minority stress hypothesis, claiming that discriminatory social conditions lead to poor health outcomes (Dean et al., 2000Krieger & Sidney, 1997Mays & Cochran, 2001Meyer, 2001Rosario et al., 1996). In 1999, the journal Archives of General Psychiatry published two articles (Fergusson, Horwood, & Beautrais, 1999Herrell et al., 1999) that showed that as compared with heterosexual people, LGB people had higher prevalences of mental disorders and suicide. The articles were accompanied by three editorials (Bailey, 1999Friedman, 1999Remafedi, 1999). One editorial heralded the studies as containing “the best published data on the association between homosexuality and psychopathology,” and concluded that “homosexual people are at a substantially higher risk for some forms of emotional problems, including suicidality, major depression, and anxiety disorder” (Bailey, 1999, p. 883). All three editorials suggested that homophobia and adverse social conditions are a primary risk for mental health problems of LGB people. This shift in discourse is also reflected in the gay-affirmative popular media. For example, in an article titled “The Hidden Plague” published in Out, a gay and lesbian lifestyle magazine, Andrew Solomon (2001) claimed that compared with heterosexuals “gay people experience depression in hugely disproportionate numbers” (p. 38) and suggested that the most probable cause is societal homophobia and the prejudice and discrimination associated with it.

To assess evidence for the minority stress hypothesis from between-groups studies, I examined data on prevalences of mental disorders in LGB versus heterosexual populations. The minority stress hypothesis leads to the prediction that LGB individuals would have higher prevalences of mental disorder because they are exposed to greater social stress. To the extent that social stress causes psychiatric disorder, the excess in risk exposure would lead to excess in morbidity (Dohrenwend, 2000).

I identified relevant studies using electronic searches of the PsycINFO and MEDLINE databases. I included studies if they were published in an English-language peer-reviewed journal, reported prevalences of diagnosed psychiatric disorders that were based on research diagnostic criteria (e.g., DSM), and compared lesbians, gay men, and/or bisexuals (variably defined) with heterosexual comparison groups. Studies that reported scores on scales of psychiatric symptoms (e.g., Beck Depression Inventory) and studies that provided diagnostic criteria on LGB populations with no comparison heterosexual groups were excluded. Selecting studies for review can present problems—studies reporting statistically significant results are typically more likely to be published than studies with nonsignificant results. This can result in publication bias, which overestimates the effects in the research synthesis (Begg, 1994). There are some reasons to suspect that publication bias is not a great threat to the present analysis. First, Begg (1994) noted that publication bias is more of a concern in instances in which numerous small studies are being conducted. This is clearly not the case with regard to population surveys of LGB individuals and the mental health outcomes as defined here—the studies I rely on are few and large. This is, in part, because of the great costs involved in sampling LGB people and, in part, because the area has not been extensively studied since the declassification of homosexuality as a mental disorder. Second, publication is typically guided by an “advocacy style,” where statistical significance is used as “‘proof’ of a theory” (Begg, 1994, p. 400). In the area of LGB mental health, showing nonsignificant results—that LGBs do not have higher prevalences of mental disorders—would have provided as much a proof of a theory as showing significant results; therefore, bias toward publication of positive results is unlikely.

In reviewing the data I consider classes of mental disorders that are commonly discussed in the psychiatric epidemiology literature (Kessler et al., 1994Robins & Regier, 1991). Consistent with this literature, I consider separately prevalence of lifetime disorders, those occurring at any time over the lifetime, and prevalence of current disorders, typically those occurring in 1-year period. I examine the prevalence of any mental disorder and the prevalences of general subclasses of disorders, including mood disorders, anxiety disorders, and substance use disorders. The inclusion of only major classes of disorders allows for greater parsimony in interpreting the results than would be allowed by an examination of each individual disorder. It is a sufficient test of the minority stress hypothesis because minority stress predictions are general and uniform across types of disorders. The included disorders are those that are most prevalent in population samples and that are most often the subject of psychiatric epidemiological studies. Excluded disorders were rarely if ever studied in population samples of LGB individuals, so their exclusion does not lead to bias in selection of available literature. The classes of disorders excluded were disorders usually first diagnosed in infancy, childhood, or adolescence; delirium, dementia, and amnestic and other cognitive disorders; mental disorders due to a general medical condition; schizophrenia and other psychotic disorders; somatoform disorders; factitious disorders; dissociative disorders; sexual and gender identity disorders; eating disorders; sleep disorders; impulse-control disorders; adjustment disorders; and personality disorders.

The studies (Atkinson et al., 1988Cochran & Mays, 2000a2000bFergusson et al., 1999Gilman et al., 2001Mays & Cochran, 2001Pillard, 1988Saghir et al., 1970a1970bSandfort et al., 2001) and their results are reported in Table 1. In drawing a conclusion about whether LGB groups have higher prevalences of mental disorders one should proceed with caution. The studies are few, methodologies and measurements are inconsistent, and trends in the findings are not always easy to interpret. Although several studies show significant elevation in prevalences of disorders in LGB people, some do not. Yet, an overall trend appears clear. This pattern must lead us to conclude similarly to Saghir et al. (1970a1970b) that whenever significant differences in prevalences of disorders between LGB and heterosexual groups were reported, LGB groups had a higher prevalence than heterosexual groups.

Table 1

Prevalence of Mental Disorders: Summary of Findings From Studies That Compared Lesbian, Gay, and Bisexual Populations With Heterosexual Peers

Note. Findings are presented as odds ratios (ORs; with 95% confidence intervals) in reference to the heterosexual comparison group. ORs are adjusted for various control variables when provided in the original article. Significant results, marked in bold, are defined as α < 95% (lower bound for the 95% confidence interval ≠ 1.00). MDD = major depressive disorder; CA = California; GAD = generalized anxiety disorder; NHANES = National Health and Nutrition Examination Survey; NHSDA = National Household Survey of Drug Abuse; NCS = National Comorbidity Survey; NEMESIS = Netherlands Mental Health Survey and Incidence Study; MIDUS = Midlife Development in the United States.

To evaluate this general impression I conducted a meta-analysis using the Mantel–Haenszel (M-H) procedure for synthesis of categorical data (Fleiss, 1981Shadish, Cook, & Campbell, 2002Shadish & Haddock, 1994) using the statistical software Epi Info (Version 1.12, Statcalc procedure; Centers for Disease Control and Prevention, 2001). This procedure provides a M-H weighted odds ratio (OR) and confidence intervals (CIs) on aggregates of individual studies. For each class of disorder I calculated the M-H weighted OR from studies that provided relevant data. In addition, I conducted stratified analyses that combined results for (a) men versus women and (b) studies that used nonrandom versus random sampling techniques. The analyses provided M-H weighted ORs for each stratum. The results of this meta-analysis for prevalences of lifetime and current disorders are shown in Figure 2; they affirm the impression given by an examination of Table 1. The results are compelling for all disorders, for each of the subclasses of disorders examined, and for lifetime and current disorders. For example, for the five studies providing data on any lifetime mental disorders, the combined M-H weighted OR was 2.41, with a 95% CI of 1.91 to 3.02. This indicates that compared with heterosexual men and women, gay men and lesbians are about 2.5 times more likely to have had a mental disorder at any point over their lifetime. The analyses that stratified the observations by gender showed no divergence from the results of the unstratified analyses. The M-H weighted OR (95% CI) for a lifetime occurrence of any disorder was 2.07 (1.57, 2.74) for men and 3.31 (2.19, 5.06) for women; for mood disorders, 2.66 (2.07, 3.64) for men, 2.46 (1.71, 3.69) for women; for anxiety disorders, 2.43 (1.78, 3.30) for men, 1.63 (1.09, 2.47) for women; and for substance use disorders, 1.45 (1.10, 1.91) for men and 3.47 (2.22, 5.50) for women. The results on prevalences of current disorders were similar, but they showed that for substance use disorders, the combined M-H weighted OR for men (1.37, 95% CI = 0.96, 1.95) was not significant and lower than that for women (OR = 3.50, 95% CI = 2.23, 5.81).

Combined Mantel–Haenszel weighted odds ratios and 95% confidence intervals for lifetime and 1-year prevalence of mental disorders in lesbian, gay, and bisexual versus heterosexual populations. Each calculated combined Mantel–Haenszel weighted odds ratio is displayed between the upper and lower bounds of its respective 95% confidence interval. Odds ratios were recalculated from aggregated data using the Statcalc procedure of the statistical software Epi Info (Centers for Disease Control and Prevention, 2001). This procedure does not adjust for demographics characteristics or any other control variables (e.g., sampling weights) that may be necessary to arrive at unbiased population estimates. These statistics are provided to allow synthesis of the risk for lesbian, gay, and bisexual versus heterosexual respondents in the studies, but they cannot be used as accurate estimates of adjusted population odds ratios.

Results of the analyses that stratified the observations on lifetime prevalences of disorders by randomization in sampling design are presented in Figure 3. They show that for mood disorders, anxiety disorders, and substance use disorders, an increase in risk to the LGB group is evident in the randomized studies only. As the figure shows, for each of these subgroups of disorders, the M-H weighted OR was significant in the analysis of studies that used random samples, but not in the analysis of studies that used nonrandom samples (an OR is not significant when the 95% CI includes 1.00). These analyses could not be conducted for current prevalences of disorder because an insufficient number of nonrandomized studies provided such data.

Combined Mantel–Haenszel weighted odds ratios and 95% confidence intervals for lifetime prevalence of mental disorders in studies of lesbian, gay, and bisexual versus heterosexual populations that used random and nonrandom samples. Each calculated combined Mantel–Haenszel weighted odds ratio is displayed between the upper and lower bounds of its respective 95% confidence interval. Odds ratios were recalculated from aggregated data using the Statcalc procedure of the statistical software Epi Info (Centers for Disease Control and Prevention, 2001). This procedure does not adjust for demographics characteristics or any other control variables (e.g., sampling weights) that may be necessary to arrive at unbiased population estimates. These statistics are provided to allow synthesis of the risk for lesbian, gay, and bisexual versus heterosexual respondents in the studies, but they cannot be used as accurate estimates of adjusted population odds ratios.

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Whether gay men have higher prevalence of suicidal behavior has also been debated in recent years. Some reviewers have contended that suicide is highly prevalent among LGB populations, especially youth (Gibson, 1989). In support of this, several studies found elevated lifetime prevalences of suicide ideation and attempts in LGB populations (Bell & Weinberg, 1978D’Augelli & Hershberger, 1993Kruks, 1990Noell & Ochs, 2001Pillard, 1988Remafedi, Farrow, & Deisher, 1991Rotheram-Borus, Hunter, & Rosario, 1994Saghir et al., 1970a1970bSchneider, Farberow, & Kruks, 1989Schneider, Taylor, Hammen, Kemeny, & Dudley, 1991). However, such studies have been criticized for severe methodological limitations including selection bias and measurement issues (Muehrer, 1995Savin-Williams, 2001). For example, many studies used samples of youth recruited from social service organizations, who may be more vulnerable than the general population of LGB youth to mental health problems (Muehrer, 1995).

More recently, studies that used improved methodologies, such as random probability sampling, clearer definitions, and improved measurements of suicidality, also found strong evidence for elevation in suicide-related problems among LGB persons. A higher risk for suicide ideation and attempts among LGB groups seems to start at least as early as high school. For example, in a representative sample of Massachusetts high school students, Garofalo et al. (1998) found that LGB youth (including other youths who were not sure of their sexual orientation) were three times more likely than their heterosexual peers to report a suicide attempt in the year prior to the survey. When stratified by gender, sexual orientation was an independent predictor of suicide attempts among boys but not girls. Other probability surveys support the conclusion that LGB youth are at increased risk for suicide attempts (Bagley & Tremblay, 1997Faulkner & Cranston, 1998Remafedi, French, Story, Resnick, & Blum, 1998Safren & Heimberg, 1999). A cohort study in New Zealand found that LGB youth were five to six times more likely than heterosexual youth to report suicide ideation and attempts over their lifetime (Fergusson et al., 1999). Similar findings have been reported among adults in the United States, where gay men were more than twice as likely as heterosexual men to report lifetime suicide attempts (Cochran & Mays, 2000aGilman et al., 2001Paul et al., 2002). A 1999 study of the Vietnam Era Twin Registry used particularly convincing methodology to study differences in suicidality between twins (Herrell et al., 1999); it found that gay or bisexual men were six times more likely than their heterosexual twins to have attempted suicide.

Taken together, the evidence from these studies supports the minority stress hypothesis that LGB populations are vulnerable to suicide ideation and attempt—although the evidence on adult lesbian and bisexual women is not as clear. Also not clear from studies of suicide ideation and attempt is whether LGB persons are at higher risk for suicide-related mortality. Suicide attempts and ideation are alarming in their own right, but their relationship to completed suicide is not straightforward; for example, not all attempters do so with the intent to die or injure themselves severely enough to cause death (Moscicki, 1994). Nevertheless, regardless of its relationship to completed suicide, suicide ideation and attempt is a serious personal and public health concern that need to be studied for its own merit (Moscicki, 1994Moscicki et al., 1988).

Two studies assessed the risk for completed suicides among gay men (Rich, Fowler, Young, & Blenkush, 1986Shaffer, Fisher, Hicks, Parides, & Gould, 1995). These studies assessed the prevalence of homosexuality among completed suicides and found no overrepresentation of gay and bisexual men, concluding that LGB populations are not at increased risk for suicide. Thus, findings from studies of completed suicides are inconsistent with studies finding that LGB groups are at higher risk of suicide ideation and attempts than heterosexuals. However, there are many challenges to interpreting these data (McDaniel, Purcell, & D’Augelli, 2001Muehrer, 1995). Among these difficulties are that (a) these studies attempt to answer whether gay individuals are overrepresented in suicide deaths by comparing it against an expected population prevalence of homosexuality, but with no proper population data on LGB individuals, it is a matter of some conjunction to arrive at any such estimate and (b) because these studies rely on postmortem classification of sexual orientation, their reliability in assessing prevalence of gay individuals among suicide deaths is questionable. Even if the deceased person was gay, postmortem autopsies are likely to underestimate his or her homosexuality because homosexuality is easily concealable and often is concealed. Considering the scarcity of studies, the methodological challenges, and the greater potential for bias in studies of completed suicide, it is difficult to draw firm conclusions from their apparent refutation of minority stress theory.

Do lgb people have higher prevalences of mental disorders?

As described above, the preponderance of the evidence suggests that the answer to the question, “Do LGB people have higher prevalences of mental disorders?” is yes. The evidence is compelling. However, the answer is complicated because of methodological limitations in the available studies. The studies whose evidence I have relied on (discussed as between-groups studies) fall into two categories: studies that targeted LGB groups using non-probability samples and studies that used probability samples of the general populations that allowed identification of LGB versus heterosexual groups. In the first type, the potential for error is great because researchers relied on volunteers who may be very different than the general LGB population to which one wants to generalize (Committee on Lesbian Health Research Priorities, 1999Harry, 1986Meyer & Colten, 1999Meyer, Rossano, Ellis, & Bradford, 2002). It is plausible that interest in the study topic attracts volunteers who are more likely to have had—or at least, to disclose—more mental health problems than nonvolunteers. This may be particularly problematic in studies of LGB youth (e.g., Fergusson et al., 1999). As a group, LGB youth respondents in studies may represent only a portion of the total underlying population of LGB youth—those who are “the out, visible, and early identifiers” (Savin-Williams, 2001, p. 983)—therefore biasing estimates of characteristics of the elusive target population. Also, the studies I reviewed compared the LGB group with a nonrandom sample of heterosexuals, introducing further bias, because the methods they used to sample heterosexuals often differed from those used to sample than the LGB groups. The potential for bias is particularly glaring in studies that compared a healthy heterosexual group with a group of gay men with HIV infection and AIDS (e.g., Atkinson et al., 1988).

The second group of studies used population-based surveys. Such studies greatly improve on the methodology of the first type of studies because they used random sampling techniques, but they too suffer from methodological deficiencies. This is because none of these studies was a priori designed to assess mental health of LGB groups; as a result, they were not sophisticated in the measurement of sexual orientation. The studies classified respondents as homosexual or heterosexual only on the basis of past sexual behavior—in 1 year (Sandfort et al., 2001), in 5 years (Gilman et al., 2001), or over the lifetime (Cochran & Mays, 2000a)—rather than using a more complex matrix that assessed identity and attraction in addition to sexual behavior (Laumann et al., 1994). The problem of measurement could have increased potential error due to misclassification, which in turn could have led to selection bias. The direction of bias due to selection is unclear, but it is plausible that individuals who were more troubled by their sexuality would be overrepresented—especially as discussed above for youth—leading to bias in reported estimates of mental disorder. However, the reverse result, that people who were more secure and healthy were overrepresented, is also plausible.

The studies also suffer because they included a very small number of LGB people. The small sample sizes resulted in little power to detect differences between the LGB and heterosexual groups, which led to lack of precision in calculating group differences in prevalences of disorders. This means that only differences of high magnitude would be detected as statistically significant, which might explain the inconsistencies in the research evidence. It should be noted, however, that if inconsistencies were the result of random error, one would expect that in some studies the heterosexual group would appear to have higher prevalences of disorders. This was not evident in the studies reviewed. The small number of LGB respondents in these studies also resulted in low power to detect (or statistically control for) patterns related to race/ethnicity, education, age, socioeconomic status, and, sometimes, gender. My use of a meta-analytic technique to estimate combined ORs somewhat corrects this deficiency, but it is important to remember that a meta-analysis cannot overcome problems in the studies on which it is based. It is important, therefore, to interpret results of meta-analyses with caution and a critical perspective (Shapiro, 1994).

One problem, which can provide a plausible alternative explanation for the findings about prevalences of mental disorders in LGB individuals, is that bias related to cultural differences between LGB and heterosexual persons inflates reports about history of mental health symptoms (cf. Dohrenwend, 1966Rogler, Mroczek, Fellows, & Loftus, 2001). It is plausible that cultural differences between LGB and heterosexual individuals cause a response bias that led to overestimation of mental disorders among LGB individuals. This would happen if, for example, LGB individuals were more likely to report mental health problems than heterosexual individuals. There are several reasons why this may be the case: In recognizing their own homosexuality and coming out, most LGB people have gone through an important self-defining period when increased introspection is likely. This could lead to greater ease in disclosing mental health problems. In addition, a coming out period provides a focal point for recall that could lead to recall bias that exaggerates past difficulties. Related to this, studies have suggested that LGB people are more likely than heterosexual people to have received professional mental health services (Cochran & Mays, 2000b). This too could have led LGB people to be less defensive and more ready than heterosexual people to disclose mental health problems in research. Of course, increased use of mental health services could also reflect a true elevation in prevalences of mental disorders in LGB people, though the association between mental health treatment and presence of diagnosed mental disorders is not strong (Link & Dohrenwend, 1980). To the extent that such response biases existed, they would have led researchers to overestimate the prevalence of mental disorders in LGB groups. Research is needed to test these propositions.

Over the past 2 decades, significant advances in psychiatric epidemiology have made earlier research on prevalence of mental disorders almost obsolete. Among these advances are the recognition of the importance of population-based surveys (rather than clinical studies) of mental disorders, the introduction of an improved psychiatric classification system, and the development of more accurate measurement tools and techniques for epidemiological research. Two large-scale psychiatric epidemiological surveys have already been conducted in the United States: the Epidemiological Catchment Area Study (Robins & Regier, 1991) and the National Comorbidity Survey (Kessler et al., 1994). Similar studies need to address questions about patterns of stress and disorder in LGB populations (Committee on Lesbian Health Research Priorities, 1999Dean et al., 2000).

Using random sampling methodologies for large-scale studies of LGB populations is challenging and costly, but it is not impossible. Recent research has demonstrated the utility of innovative methodologies for population studies of LGB individuals (Binson et al., 1995Binson, Moskowitz, Anderson, Paul, & Catania, 1996Meyer & Colten, 1999Meyer et al., 2002). New research must therefore continue to use random sampling to study LGB groups, combined with sophisticated measurements of sexual orientation, a larger number of respondents, and a direct test of hypotheses about patterns in prevalences of disorders and their causes. An ideal study design would combine evidence from the investigation of within- and between-groups differences. Such a study would assess both the differences in prevalences of disorders and the causal role of stress processes in explaining excess risk for disorder in the LGB group. If in a random population sample the prevalence of disorders would be found to be higher among LGB respondents than among their heterosexual peers and if stress mechanisms explained the excess in this prevalence of disorder, then minority stress predictions would be strongly supported.

To understand causal relations, research also needs to explain the mechanisms through which stressors related to prejudice and discrimination affect mental health. Krieger (2001) called for an ecosocial perspective in social epidemiology, which would explain how social factors are embodied and lead to disease. Discussing racism, she explained,

Biological expressions of racial discrimination … refer to how people literally embody and biologically express experiences of racial oppression and resistance, from conception to death, thereby producing racial/ethnic disparities in morbidity and mortality across a wide spectrum of outcomes. (Krieger, 2000, p. 63)

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Limitations and challenges

The conclusion I propose—that LGB individuals are exposed to excess stress due to their minority position and that this stress causes an excess in mental disorders—is inconsistent with research and theoretical writings that can be described as a minority resilience hypothesis, which claims that stigma does not negatively affect self-esteem (Crocker et al., 1998Gray-Little & Hafdahl, 2000Twenge & Crocker, 2002). As such, my conclusion is also inconsistent with studies that showed that Blacks do not have higher prevalences of mental disorders than Whites, as is expected by minority stress formulations (Kessler et al., 1994Robins & Regier, 1991). Further research must address this apparent contradiction. One area for the study of differences between minority stress in LGB and Black individuals concerns the socialization of minority group members. LGB individuals are distinct from Blacks in that they are not born into their minority identity but acquire it later in life. Because of this, LGB individuals do not have the benefit of growing up in a self-enhancing social environment similar to that provided to Blacks in the process of socialization. Experiences with positive racial identity may be protective to Blacks both directly, by contributing to high self-esteem, and indirectly, by facilitating self-protective mechanisms associated with stigma (Crocker & Major, 1989Gray-Little & Hafdahl, 2000Twenge & Crocker, 2002). This distinction may lead to a greater impact of minority stress among LGB individuals as compared with race/ethnic minorities. Studying this distinction between LGB individuals and Blacks may reveal important aspects of the effect of stigma on mental health.

There are several important limitations to my review. First, throughout the article I discuss LGB individuals as if they were a homogenous group. That is clearly not the case. In ignoring the heterogeneity of the group I may have glossed over some important distinctions relevant to the discussion of minority stress. Perhaps one of the most important is a distinction between a single minority identity of White gay and bisexual men and multiple minority identities of gay and bisexual men who are also members of race/ethnic minorities and therefore subject to stigma related to their race/ethnicity (Eliason, 1996). Some studies found ethnicity/race differences in stress and social support among LGB populations, with members of ethnic minorities confronting racism in a White LGB community and homophobia in their ethnic communities of origin (Chan, 1995Espin, 1993Fullilove & Fullilove, 1999). Similarly, lesbians and bisexual women confront stigma and prejudice related to gender in addition to sexual orientation. Just as racial/ethnic identity and gender provide additional sources of stress, they provide additional resources for coping with stigma. For example, Brooks (1981) described affiliation with feminist organizations as a significant source of support and coping for lesbians. Finally, the review, and the studies I cite, fails to distinguish bisexual individuals from lesbian and gay individuals. Recent evidence suggests that this distinction is important and that bisexuals may be exposed to more stressors and may have greater mental health problems than lesbians or gay men (Jorm, Korten, Rodgers, Jacomb, & Christensen, 2002).

Another limitation is that the review ignores generational and cohort effects in minority stress and the prevalence of mental disorder. Cohler and Galatzer-Levy (2000) critiqued analyses that ignore important generational and cohort effects. They noted great variability among generations of lesbians and gay men. They described an older generation, which matured prior to the gay liberation movement, as the one that has been most affected by stigma and prejudice, a middle-aged generation, which brought about the gay liberation movement, as the one that benefited from advances in civil rights of and social attitudes toward LGB individuals, and a younger generation, including the present generation of young adults, as having an unparalleled “ease about sexuality” (p. 40). An analysis that accounts for these generational and cohort changes would greatly illuminate the discussion of minority stress. Clearly, the social environment of LGB people has undergone remarkable changes over the past few decades. Still, even Cohler and Galatzer-Levy (2000) limited their description of the new gay and lesbian generation to a primarily liberal urban and suburban environment. Evidence from current studies of youth has confirmed that the purported shifts in the social environment have so far failed to protect LGB youth from prejudice and discrimination and its harmful impact (Safe Schools Coalition of Washington, 1999).


I proposed a minority stress model that explains the higher prevalence of mental disorders as caused by excess in social stressors related to stigma and prejudice. Studies demonstrated that social stressors are associated with mental health outcomes in LGB people, supporting formulations of minority stress. Evidence from between-groups studies clearly demonstrates that LGB populations have higher prevalences of psychiatric disorders than heterosexuals. Nevertheless, methodological challenges persist. To date, no epidemiological study has been conducted that planned to a priori study the mental health of LGB populations. To advance the field, it is necessary that researchers and funding agencies develop research that uses improved epidemiological methodologies, including random sampling, to study mental health within the context of the minority stress model.

I discussed two conceptual views of stress; each implies different points for public health and public policy interventions. The subjective view, which highlights individual processes, suggests that interventions should aim to change the appraisal process, the person’s way of evaluating their condition and coping with stress and adversity. The objective view, which highlights the objective properties of the stressors, points to remedies that would aim to alter the stress-inducing environment and reduce exposure to stress. If the stress model is correct, both types of remedies can lead to a reduction in mental health problems, but they have different ethical implications. The former places greater burden on the individual, the latter, on society. Kitzinger (1997) warned psychologists that a subjective, individualistic focus could lead to ignoring the need for important political and structural changes:

If [psychologists’] aim is to decrease “stress” and to increase the “ego strength” of the victim, do they risk forgetting that it is the perpetrator, not the victim, who is the real problem? What political choices are they making in focusing on the problems of the oppressed rather than on the problem of the oppressor? (p. 213)

I endorsed this perspective in illuminating distinctions between viewing the minority person as victim or resilient actor.

However, denying individual agency and resilience would ignore an impressive body of social psychological research that demonstrates the importance and utility of coping with stigma (Branscombe & Ellemers, 1998Crocker & Major, 1989Miller & Major, 2000Miller & Myers, 1998). My discussion of objective versus subjective stress processes is not meant to suggest that there must be a choice of only one of the two classes of intervention options. Researchers and policymakers should use the stress model to attend to the full spectrum of interventions it suggests (Ouellette, 1998). The stress model can point to both distal and proximal causes of distress and to directing relevant interventions at both the individual and structural levels.

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Prejudice events

Similar to research with African Americans and other ethnic minority groups (Kessler, Mickelson, & Williams, 1999), researchers have described antigay violence and discrimination as core stressors affecting gay and lesbian populations (Garnets et al., 1990Herek & Berrill, 1992Herek, Gillis, & Cogan, 1999Kertzner, 1999). Antigay prejudice has been perpetrated throughout history: Institutionalized forms of prejudice, discrimination, and violence have ranged from Nazi extermination of homosexuals to enforcement of sodomy laws punishable by imprisonment, castration, torture, and death (Adam, 1987). With the formation of a gay community, as LGB individuals became more visible and more readily identifiable by potential perpetrators, they increasingly became targets of antigay violence and discrimination (Badgett, 1995Herek & Berrill, 1992Human Rights Watch, 2001Safe Schools Coalition of Washington, 1999). In 2001, Amnesty International reported that lesbian, gay, bisexual, and transgender (LGBT) people are subject to widespread human rights abuses, torture, and ill treatment, ranging from loss of dignity to assault and murder. Many of these abuses are conducted with impunity and sanctioned by governments and societies through formal mechanisms such as discriminatory laws and informal mechanisms, including prejudice and religious traditions (Amnesty International, 2001).

Surveys have documented that lesbians and gay men are disproportionately exposed to prejudice events, including discrimination and violence. For example, in a probability study of U.S. adults, LGB people were twice as likely as heterosexual people to have experienced a life event related to prejudice, such as being fired from a job (Mays & Cochran, 2001). In a study of LGB adults in Sacramento, CA, approximately 1/5 of the women and 1/4 of the men experienced victimization (including sexual assault, physical assault, robbery, and property crime) related to their sexual orientation (Herek et al., 1999). Some research has suggested variation by ethnic background as well, although the direction of the findings is not clear. For instance, among urban adults aged 25 to 37 who reported having same-sex sexual partners, Krieger and Sidney (1997) found that 1/2 of Whites compared with 1/3 of Blacks reported discrimination based on sexual orientation. On the other hand, in a study of HIV-positive gay men in New York City, Siegel and Epstein (1996) found that African American and Puerto Rican men had significantly more gay-related minority stressors than Caucasian men.

Research has suggested that LGB youth are even more likely than adults to be victimized by antigay prejudice events, and the psychological consequences of their victimization may be more severe. Surveys of schools in several regions of the United States showed that LGB youth are exposed to more discrimination and violence events than their heterosexual peers. Several such studies, conducted on population samples of high school students, converge in their findings and show that the social environment of sexual minority youth in U.S. high schools is characterized by discrimination, rejection, and violence (Faulkner & Cranston, 1998Garofalo, Wolf, Kessel, Palfrey, & DuRant, 1998). Compared with heterosexual youth, LGB youth are at increased risk for being threatened and assaulted, are more fearful for their safety at school, and miss school days because of this fear (Safe Schools Coalition of Washington, 1999). For example, in a random sample of Massachusetts high schools students, LGB students more often than heterosexual students had property stolen or deliberately damaged (7% vs. 1%), were threatened or injured with a weapon (6% vs.1%), and were in physical fight requiring medical treatment (6% vs. 2%; Safe Schools Coalition of Washington, 1999). A national survey of LGBT youth conducted by the advocacy organization Gay, Lesbian, and Straight Education Network (GLSEN; 1999) reported that those surveyed experienced verbal harassment (61%), sexual harassment (47%), physical harassment (28%), and physical assault (14%). The overwhelming majority of LGBT youth (90%) sometimes or frequently heard homophobic remarks at their schools, with many (37%) reporting hearing these remarks from faculty or school staff (GLSEN, 1999).

Gay men and lesbians are also discriminated against in the workplace. Waldo (1999) demonstrated a relationship between employers’ organizational climate and the experience of heterosexism in the workplace, which was subsequently related to adverse psychological, health, and job-related outcomes in LGB employees. Badget’s (1995) analysis of national data showed that gay and bisexual male workers earned from 11% to 27% less than heterosexual male workers with the same experience, education, occupation, marital status, and region of residence.

Garnets et al. (1990) described psychological mechanisms that could explain the association between victimization and psychological distress. The authors noted that victimization interferes with perception of the world as meaningful and orderly. In an attempt to restore order to their perception of the world, survivors ask “Why me?” and often respond with self-recrimination and self-devaluation. More generally, experiences of victimization take away the victim’s sense of security and invulnerability. Health symptoms of victimization include “sleep disturbances and nightmares, headaches, diarrhea, uncontrollable crying, agitation and restlessness, increased use of drugs, and deterioration in personal relationship” (Garnets et al., 1990, p. 367). Antigay bias crimes had greater mental health impact on LGB persons than similar crime not related to bias, and bias-crime victimization may have short- or long-term consequences, including severe reactions such as posttraumatic stress disorder (Herek et al., 1999McDevitt, Balboni, Garcia, & Gu, 2001).

Stigma: expectations of rejection and discrimination

Goffman (1963) discussed the anxiety with which the stigmatized individual approaches interactions in society. Such an individual “may perceive, usually quite correctly, that whatever others profess, they do not really ‘accept’ him and are not ready to make contact with him on ‘equal grounds’” (Goffman, 1963, p. 7). Allport (1954) described vigilance as one of the traits that targets of prejudice develop in defensive coping. This concept helps to explain the stressful effect of stigma. Like other minority group members, LGB people learn to anticipate—indeed, expect—negative regard from members of the dominant culture. To ward off potential negative regard, discrimination, and violence they must maintain vigilance. The greater one’s perceived stigma, the greater the need for vigilance in interactions with dominant group members. By definition such vigilance is chronic in that it is repeatedly and continually evoked in the everyday life of the minority person. Crocker et al. (1998) described this as the “need to be constantly ‘on guard’ … alert, or mindful of the possibility that the other person is prejudiced” (p. 517). Jones et al. (1984) described the effect of societal stigma on the stigmatized individual as creating a conflict between self-perceptions and others-perceptions. As a result of this conflict, self-perception is likely to be at least somewhat unstable and vulnerable. Maintaining stability and coherence in self-concept is likely to require considerable energy and activity.

This exertion of energy in maintaining one’s self-concept is stressful, and would increase as perceptions of others’ stigmatization increase. Branscombe, Ellemers, Spears, and Doosje (1999) described four sources of threat relevant to the discussion of stress due to stigma. Categorization threat involves threat that a person will be categorized by others as a member of a group against his or her will, especially when group membership is irrelevant within the particular context (e.g., categorization as a woman when applying for a business loan). Distinctiveness threat is an opposite threat, relating to denial of distinct group membership when it is relevant or significant (also Brewer, 1991). Threats to the value of social identity involves undermining of the minority group’s values, such as its competence and morality. A fourth threat, threat to acceptance, emerges from negative feedback from one’s in-group and the consequent threat rejection by the group. For example, Ethier and Deaux (1994) found that Hispanic American students at an Ivy League university were conflicted, divided between identification with White friends and culture and the desire to maintain an ethnic cultural identity.

Research evidence on the impact of stigma on health, psychological, and social functioning comes from a variety of sources. Link (1987Link, Struening, Rahav, Phelan, & Nuttbrock, 1997) showed that in mentally ill individuals, perceived stigma was related to adverse effects in mental health and social functioning. In a cross-cultural study of gay men, Ross (1985) found that anticipated social rejection was more predictive of psychological distress outcomes than actual negative experiences. However, research on the impact of stigma on self-esteem, a main focus of social psychological research, has not consistently supported this theoretical perspective; such research often fails to show that members of stigmatized groups have lower self-esteem than others (Crocker & Major, 1989Crocker et al., 1998Crocker & Quinn, 2000). One explanation for this finding is that along with its negative impact, stigma has self-protective properties related to group affiliation and support that ameliorate the effect of stigma (Crocker & Major, 1989). This finding is not consistent across various ethnic groups: Although Blacks have scored higher than Whites on measures of self-esteem, other ethnic minorities have scored lower than Whites (Twenge & Crocker, 2002).

Experimental social psychological research has highlighted other processes that can lead to adverse outcomes. This research may be classified as somewhat different from that related to the vigilance concept discussed above. Vigilance is related to feared possible (even if imagined) negative events and may therefore be classified as more distal along the continuum ranging from the environment to the self. Stigma threat, as described below, relates to internal processes that are more proximal to the self. This research has shown that expectations of stigma can impair social and academic functioning of stigmatized persons by affecting their performance (Crocker et al., 1998Farina, Allen, & Saul, 1968Pinel, 2002Steele, 1997Steele & Aronson, 1995). For example, Steele (1997) described stereotype threat as the “social–psychological threat that arises when one is in a situation or doing something for which a negative stereotype about one’s group applies” (p. 614) and showed that the emotional reaction to this threat can interfere with intellectual performance. When situations of stereotype threat are prolonged they can lead to “disidentification,” whereby a member of a stigmatized group removes a domain that is negatively stereotyped (e.g., academic success) from his or her self-definition. Such disidentification with a goal undermines the person’s motivation—and therefore, effort—to achieve in this domain. Unlike the concept of life events, which holds that stress stems from some concrete offense (e.g., antigay violence), here it is not necessary that any prejudice event has actually occurred. As Crocker (1999) noted, because of the chronic exposure to a stigmatizing social environment, “the consequences of stigma do not require that a stigmatizer in the situation holds negative stereotypes or discriminates” (p. 103); as Steele (1997) described it, for the stigmatized person there is “a threat in the air” (p. 613).

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Concealment versus disclosure

Another area of research on stigma, moving more proximally to the self, concerns the effect of concealing one’s stigmatizing attribute. Paradoxically, concealing one’s stigma is often used as a coping strategy, aimed at avoiding negative consequences of stigma, but it is a coping strategy that can backfire and become stressful (Miller & Major, 2000). In a study of women who felt stigmatized by abortion, Major and Gramzow (1999) demonstrated that concealment was related to suppressing thoughts about the abortion, which led to intrusive thoughts about it, and resulted in psychological distress. Smart and Wegner (2000) described the cost of hiding one’s stigma in terms of the resultant cognitive burden involved in the constant preoccupation with hiding. They described complex cognitive processes, both conscious and unconscious, that are necessary to maintain secrecy regarding one’s stigma, and called the inner experience of the person who is hiding a concealable stigma a “private hell” (p. 229).

LGB people may conceal their sexual orientation in an effort to either protect themselves from real harm (e.g., being attacked, getting fired from a job) or out of shame and guilt (D’Augelli & Grossman, 2001). Concealment of one’s homosexuality is an important source of stress for gay men and lesbians (DiPlacido, 1998). Hetrick and Martin (1987) described learning to hide as the most common coping strategy of gay and lesbian adolescents, and noted that

individuals in such a position must constantly monitor their behavior in all circumstances: how one dresses, speaks, walks, and talks become constant sources of possible discovery. One must limit one’s friends, one’s interests, and one’s expression, for fear that one might be found guilty by association. … The individual who must hide of necessity learns to interact on the basis of deceit governed by fear of discovery. … Each successive act of deception, each moment of monitoring which is unconscious and automatic for others, serves to reinforce the belief in one’s difference and inferiority. (pp. 35–36)

Hiding and fear of being identified do not end with adolescence. For example, studies of the workplace experience of LGB people found that fear of discrimination and concealment of sexual orientation are prevalent (Croteau, 1996) and that they have adverse psychological, health, and job-related outcomes (Waldo, 1999). These studies showed that LGB people engage in identity disclosure and concealment strategies that address fear of discrimination on one hand and a need for self-integrity on the other. These strategies range from passing, which involves lying to be seen as heterosexual; covering, which involves censoring clues about one’s self so that LGB identity is concealed; being implicitly out, which involves telling the truth without using explicit language that discloses one’s sexual identity; and being explicitly out (Griffin, 1992, as cited in Croteau, 1996).

Another source of evidence comes from psychological research that has shown that expressing emotions and sharing important aspects of one’s self with others—through confessions and disclosures involved in interpersonal or therapeutic relationships, for example—are important factors in maintaining physical and mental health (Pennebaker, 1995). Studies have shown that suppression, such as hiding secrets, is related to adverse health outcomes and that expressing and disclosing traumatic events or characteristics of the self improve health by reducing anxiety and promoting assimilation of the revealed characteristics (Bucci, 1995Stiles, 1995). In one class of studies, investigators have shown that repression and inhibition affect immune functions and health outcomes, whereas expression of emotions, such as writing about traumatic experiences, produces improvement in immune functions, decreases in physician visits, and reduced symptoms for diseases such as asthma and arthritis (Petrie, Booth, & Davison, 1995Smyth, Stone, Hurewitz, & Kaell, 1999). Research evidence in gay men supports these formulations. Cole and colleagues found that HIV infection advanced more rapidly among gay men who concealed their sexual orientation than those who were open about their sexual orientation (Cole et al., 1996a). In another study among HIV-negative gay men, those who concealed their sexual orientation were more likely to have health problems than those who were open about their sexual orientation (Cole et al., 1996b)

In addition to suppressed emotions, concealment prevents LGB people from identifying and affiliating with others who are gay. Psychological literature has demonstrated the positive impact of affiliation with other similarly stigmatized persons on self-esteem (Crocker & Major, 1989Jones et al., 1984Postmes & Branscombe, 2002). This effect has been demonstrated by Frable, Platt, and Hoey (1998) in day-to-day interactions. The researchers assessed self-perceptions and well-being in the context of the immediate social environment. College students with concealable stigmas, such as homosexuality, felt better about themselves when they were in an environment with others who were like them than when they were with others who are not similarly stigmatized. In addition, if LGB people conceal their sexual orientation, they are not likely to access formal and informal support resources in the LGB community. Thus, in concealing their sexual orientation LGB people suffer from the health-impairing properties of concealment and lose the ameliorative self-protective effects of being “out.”

Internalized homophobia

In the most proximal position along the continuum from the environment to the self, internalized homophobia represents a form of stress that is internal and insidious. In the absence of overt negative events, and even if one’s minority status is successfully concealed, lesbians and gay men may be harmed by directing negative social values toward the self. Thoits (1985, p. 222) described such a process of self-stigmatization, explaining that “role-taking abilities enable individuals to view themselves from the imagined perspective of others. One can anticipate and respond in advance to others’ reactions regarding a contemplated course of action.”

Clinicians use the term internalized homophobia to refer to the internalization of societal antigay attitudes in lesbians and gay men (e.g., Malyon, 1981–1982). Meyer and Dean (1998) defined internalized homophobia as “the gay person’s direction of negative social attitudes toward the self, leading to a devaluation of the self and resultant internal conflicts and poor self-regard” (p. 161). After they accept their stigmatized sexual orientation, LGB people begin a process of coming out. Optimally, through this process they come to terms with their homosexuality and develop a healthy identity that incorporates their sexuality (Cass, 19791984Coleman, 1981–1982Troiden, 1989). Internalized homophobia signifies the failure of the coming out process to ward off stigma and thoroughly overcome negative self-perceptions and attitudes (Morris et al., 2001). Although it is most acute early in the coming out process, it is unlikely that internalized homophobia completely abates even when the person has accepted his or her homosexuality. Because of the strength of early socialization experiences, and because of continued exposure to antigay attitudes, internalized homophobia remains an important factor in the gay person’s psychological adjustment throughout life. Gay people maintain varying degrees of residual antigay attitudes that are integrated into their self-perception that can lead to mental health problems (Cabaj, 1988Hetrick & Martin, 1984Malyon, 1981–1982Nungesser, 1983). Gonsiorek (1988) called such residual internalized homophobia “covert,” and said, “Covert forms of internalized homophobia are the most common. Affected individuals appear to accept themselves, yet sabotage their own efforts in a variety of ways” (p. 117).

Williamson (2000) reviewed the literature on internalized homophobia and described the wide use of the term in gay and lesbian studies and gay-affirmative psychotherapeutic models. He noted the intuitive appeal of internalized homophobia to “almost all gay men and lesbians” (Williamson, 2000, p. 98). Much of the literature on internalized homophobia has come from theoretical writings and clinical observations, but some research has been published. Despite significant challenges to measuring internalized homophobia and lack of consistency in its conceptualization and measurement (Mayfield, 2001Ross & Rosser, 1996Shidlo, 1994Szymanski & Chung, 2001), research has shown that internalized homophobia is a significant correlate of mental health including depression and anxiety symptoms, substance use disorders, and suicide ideation (DiPlacido, 1998Meyer & Dean, 1998Williamson, 2000). Research has also suggested a relationship between internalized homophobia and various forms of self-harm, including eating disorders (Williamson, 2000) and HIV-risk-taking behaviors (Meyer & Dean, 1998), although Shidlo (1994) failed to show this relationship. Nicholson and Long (1990) showed that internalized homophobia was related to self-blame and poor coping in the face of HIV infection/AIDS. Other research showed that internalized homophobia was related to difficulties with intimate relationships and sexual functioning (Dupras, 1994Meyer & Dean, 1998Rosser, Metz, Bockting, & Buroker, 1997).

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