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1.

Sexual and gender politics inform relational expectations surrounding sexual experiences of Peruvian transgender women (TW) and men who have sex with men (MSM). We used the framework of sexual role strain, or incongruence between preferred sexual role and actual sexual practices, to explore potential conflicts between personally articulated identities and externally defined norms of gender and sexuality and its potential to increase HIV/STI risk. Cross-sectional individual- and dyad-level data from 766 TW and MSM in Lima, Peru were used to assess the partnership contexts within which insertive anal intercourse was practiced despite receptive role preference (receptive role strain), and receptive anal intercourse practiced despite insertive role preference (insertive role strain). Sexual role strain for TW was more common with non-primary partners, while for MSM it occurred more frequently in the context of a primary partnership. Receptive role strain was more prevalent for TW with unknown HIV status (reference: without HIV) or pre-sex drug use (reference: no pre-sex drug use). For homosexual MSM, receptive role strain was more prevalent during condomless anal intercourse (reference: condom-protected) and with receptive or versatile partners (reference: insertive). Among heterosexual or bisexual MSM, insertive role strain was more prevalent with insertive or versatile partners (reference: receptive), and less prevalent with casual partners (reference: primary). Our findings suggest TW and MSM experience different vulnerabilities during sexual role negotiation with different partner-types. Future studies should explore the impact of sexual role strain on condom use agency, HIV/STI risk, and discordances between public and private presentations of gender and sexual orientation.

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2.
The authors examined sexual behaviors, the seroprevalence of human immunodeficiency virus type 1 (HIV-1), and condom use among 2,314 homosexual and bisexual men tested during 1988-1989 at the AIDS (acquired immunodeficiency syndrome) National Center in Mexico City. Bisexuals constituted 24% of the sample; the seroprevalence rate was lower for bisexuals than homosexuals (21 vs. 34%). In logistic regressions, HIV-1 seropositivity was independently related to age, education, pattern of insertive/receptive behavior in anal sex, lifetime number of male sex partners, having sex with someone with AIDS, homosexual versus bisexual behavior, and a history of condyloma. The same logistic regressions were found to fit bisexuals and homosexuals. The rate of HIV-1 was reduced in individuals who indicated always requiring their partners to use a condom when practicing receptive anal sex (1% of the total). The most common practice for both homosexuals and bisexuals was "mixed" behavior (i.e., both insertive and receptive anal sex); this was also the practice with the highest risk. Bisexuals practiced both vaginal and anal sex with women and reported little condom use. The substantial seroprevalence among bisexuals, their frequent sexual contact with women, and their low rate of condom use imply a continuing role as a bridge of infection to females. Whether this risk will lead to a sustained heterosexual epidemic remains to be determined.  相似文献   

3.
The risk of human immunodeficiency virus (HIV) transmission from various types of homosexual contact, including oral sex, is of biologic, epidemiologic, and public health importance. The per-contact risk of acquiring HIV infection from specific acts was estimated in a prospective cohort study of 2,189 high-risk homosexual and bisexual men, conducted in San Francisco, California; Denver, Colorado; and Chicago, Illinois, in 1992-1994. During 2,633 person-years of follow-up, 60 seroconversions were observed. The estimated per-contact risk of acquiring HIV from unprotected receptive anal intercourse (URA) was 0.82 percent (95% confidence interval: 0.24, 2.76 percent) when the partner was known to be HIV+ and 0.27 percent (95% confidence interval: 0.06, 0.49 percent) when partners of unknown serostatus were included. There was heterogeneity in per-contact risk, with nine seroconversions occurring after only one or two episodes of URA. The per-contact risk associated with unprotected insertive anal and receptive oral sex with HIV-positive or unknown serostatus partners was 0.06 and 0.04 percent, respectively. URA accounted for only 15 percent of all reported sexual activity by seroconverters. As lower-risk practices become more common, they may play a larger role in propagating the epidemic and should also be addressed by interventions targeting high-risk homosexual and bisexual men.  相似文献   

4.
BACKGROUND: To analyze high-risk sexual behavior as regards HIV, the use of preventive measures and the patient-reported prevalence of HIV infections among males belonging to one of the leading homosexual associations in the Region of Madrid. METHODS: Cross-sectional study conducted in 1997-1998 by way of mailed anonymous questionnaires. An analysis is made of the sociodemographic characteristics, how often condoms are used for different types of sexual intercourse with regular or casual partners, patient-reported prevalence of HIV and other related aspects. RESULTS: 157 questionnaires were returned by gay/bisexual males. These subjects averaged 32 years of age, 85% having a high school or college education, over the past 3 months, 56% had had intercourse with more than one man; 70.6% practiced insertive anal intercourse with a regular partner and 57.4% with casual partners, solely 32.5% and 61.1% of whom always used a condom. 69.7% had receptive anal intercourse with a regular partner and 39.4% with casual partners, 35.5% and 78.4% of whom respectively always used a condom. 86.6% had oral-genital intercourse, less than 10% having always used a condom. 137 were aware of their serological condition, and 15.2% were HIV positive. 10% had had some STD at some point during the previous year. CONCLUSIONS: A major percentage of those surveyed were involved in high-risk practices (several partners and unprotected high-risk sexual intercourse) which, in conjunction with the major prevalence of infection, can be said to be the same as a major seroconversion rate.  相似文献   

5.
African American men who have sex with men (AAMSM) are vastly overrepresented among people with HIV/AIDS. Using data from 595 AAMSM in Philadelphia, we explored differences in sociodemographics, psychosocial characteristics related to beliefs about ethnicity, sexuality and masculinity, and sexual behavior with men and women by self-reported sexual identity (gay, bisexual, down low, straight). Roughly equivalent numbers identified as gay (40.6 %) and bisexual (41.3 %), while fewer identified as straight (7.6 %) or down low (10.5 %), with significant differences in age, income, history of incarceration, HIV status, alcohol and drug problems, childhood sexual abuse, and connection to the gay community evident among these groups. Analysis of psychosocial characteristics theorized to be related to identity and sexual behavior indicated significant differences in masculinity, homophobia, and outness as MSM. Gay and straight men appeared to be poles on a continuum of frequency of sexual behavior, with bisexual and down low men being sometimes more similar to gay men and sometimes more similar to straight men. The percentage of men having total intercourse of any kind was highest among down low and lowest among gay men. Gay men had less intercourse with women, but more receptive anal intercourse with men than the other identities. There were no significant differences by identity in frequency of condomless insertive anal intercourse with men, but gay men had significantly more condomless receptive anal intercourse. There were significant differences by identity for condomless vaginal and anal intercourse with women. This study demonstrates the importance of exploring differences in types of sex behavior for AAMSM by considering sexual identity.  相似文献   

6.
Young men who have sex with men (YMSM) in the United States are experiencing an alarming increase in HIV incidence. Recent evidence suggests that the majority of new HIV infections in YMSM occur in the context of serious relationships, which underscores the importance of examining predictors of sexual risk behavior in the context of sexual partnerships, including relationship type, sexual partner characteristics, and relationship dynamics. The current study aimed to evaluate relationship and sexual partnership influences on sexual risk behavior in YMSM, including differentiating between multiple sexual risk variables (i.e., any unprotected anal or vaginal intercourse, unprotected insertive anal or vaginal intercourse, and unprotected receptive anal intercourse). More serious/familiar partnerships were associated with more sexual risk across all three risk variables, while wanting a relationship to last was protective against risk across all three risk variables. Some variables were differentially linked to unprotected insertive sex (partner gender) or unprotected receptive sex (partner age, partner race, believing a partner was having sex with others, and partners repeated across waves). Sexual risk behavior in YMSM is inconsistent across sexual partnerships and appears to be determined in no small part by sexual partner characteristics, relationship dynamics, and sexual role (i.e., insertive or receptive partner). These influences are critical in understanding sexual risk in YMSM and provide important targets for intervention.  相似文献   

7.
We examined correlates of sexual risk among gay and bisexual men, who recently migrated from western and eastern African countries to the USA and lived in New York City and who are HIV negative or of unknown status. These men migrate from countries where same-sex sexuality is socially rejected and mostly illegal contributing to the motivation to migrate. Their background might predispose these men to engagement in sexual risk practices, while they are not specifically addressed in HIV prevention programming. Participants (N?=?62) reported in face-to-face interviews on pre- and postmigration experiences, psychosocial determinants of sexual risk, and current sexual practices. Operationalization of sexual risk was based on the number of men with whom they had condomless receptive and/or insertive anal sex. Over a third of the men reported always having used condoms in the past year; among the other men, sexual risk varied. Multivariate analyses showed that sexual risk was lower among men with a stronger motivation to avoid HIV infection and higher among men who currently engaged in transactional sex. Further analyses indicated that housing instability was independently associated with reduced motivation to avoid HIV infection and with engagement in transactional sex in the USA. In recent western and eastern African gay and bisexual immigrants to the USA, structural factors, including housing instability, are strongly associated with sexual risk.  相似文献   

8.
To assess the need for acquired immunodeficiency syndrome (AIDS) prevention counseling for gay and bisexual men who were continuing to engage in unsafe sex, a nonprobability telephone survey--the data may not be generalizable to the population--was conducted in Seattle during March 1987. In a 4-week period, 141 callers phoned in response to local publicity and completed a 30-minute anonymous interview. This paper focuses on 106 male respondents who were behaviorally defined as gay (that is, sex during the past year exclusively with partners of the same sex, N = 74) or bisexual (sex with both men and women, N = 32). The modal respondent was a never-married white male in his thirties who had some college education and was employed full-time in a white collar occupation. The gay men were more likely than the bisexual men to report that their family members and friends knew of their sexual orientation and to indicate that they were able to discuss their concerns about unsafe sex with someone close to them. Gay men were also more likely to use condoms and to have engaged in anonymous sex during the 3 months before the interview. More gay men had engaged in unprotected receptive anal intercourse (27 percent) than had bisexual men (13 percent), and in considerably more insertive anal intercourse (42 percent versus 22 percent). Of the gay men interviewed, 73 percent indicated that they needed help in changing their high-risk sexual behaviors compared with 61 percent of bisexuals.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

9.
The majority of persons living with human immunodeficiency virus (HIV) in the United States are men who have sex with men (MSM). High-risk sexual behavior by HIV-positive MSM exposes sex partners to HIV. The risk for transmitting HIV from an infected partner to an uninfected partner through unprotected insertive anal intercourse (UIAI) is greater than the risk for transmission through receptive anal intercourse or oral sex. Differences in sexual risk behavior might be associated with the perceived HIV serostatus of the partner (i.e., HIV positive, HIV negative, or unknown serostatus), as well as with the sex partner type (i.e., steady or nonsteady). During May 2000-December 2002, HIV-positive MSM were interviewed in a behavioral surveillance survey at surveillance sites in 16 states. This report describes insertive anal intercourse practices reported by these MSM; findings indicated that a large percentage of HIV-positive MSM were sexually abstinent, practiced safer sexual behavior by having protected insertive anal intercourse, or had UIAI with an HIV-positive partner. However, a small percentage of HIV-positive MSM reported UIAI with partners who were HIV negative or whose serostatus was unknown; for this group, more intensive and comprehensive HIV-prevention efforts are needed to eliminate this risk behavior.  相似文献   

10.
This paper describes the sexual behavior changes made by 686 gay and bisexual men in San Francisco between 1984 and 1988, focusing on the individual maintenance of this behavior change over time. There were drastic reductions in insertive and receptive unprotective anal intercourse over time and the vast majority of subjects were able to maintain these changes for at least 12 months prior to the last interview. A total of 12 percent of participants admitted to relapsing to unprotected receptive anal intercourse following initial behavior change; 10 percent reported engaging in unprotected receptive anal sex during every year of the study period. Men were more likely to practice unprotected anal intercourse in 1988 if at baseline they were younger, practiced unprotected anal intercourse, reported more sex partners, did not have a close friend or lover with AIDS, and engaged in fewer other health-related behaviors.  相似文献   

11.
Much of our understanding of the association between the Sexual Compulsivity Scale (SCS) and sexual risk behavior among men who have sex with men (MSM) has been limited to samples of HIV positive MSM only. Using data from a community-based survey of gay and bisexual men (n = 1214), this analysis sought to further evaluate the association between the SCS and sexual risk behavior. The SCS was significantly associated with a variety of sexual risk behaviors, including having sex under the influence of club drugs, engaging in unprotected anal sex (receptive or insertive) with partners of the same and/or different HIV serostatus, identity as a barebacker, intentions to have bareback sex, number of recent sex partners, and temptation for unsafe sex. The SCS was also significantly associated with having engaged in a variety of specialized sexual behaviors (i.e., fetishes), many of which can increase HIV transmission risks. Finally, in multivariate analyses, the SCS significantly predicted unprotected sex with a non-main partner even when controlling for race, HIV serostatus, age, identity as a barebacker, and club drug use. These data indicate that the SCS may be able to serve as an indicator to detect HIV-associated sexual risk behavior in community-based samples of gay and bisexual men.  相似文献   

12.
Nine hundred fifty-five of 1,384 (69 per cent) gay and bisexual men enrolled in a prospective study of the natural history of human immunodeficiency virus (HIV) infection who reported engaging in anal intercourse in the past six months were surveyed about condom use practices for both insertive (IAI) and receptive anal intercourse (RAI). The following results were obtained: 23 per cent of the men reported that they always used condoms for IAI and 21 per cent for RAI; 32 per cent sometimes used condoms for IAI; 28 per cent sometimes used condoms for RAI; 45 per cent never used condoms for IAI; and 50 per cent never used condoms for RAI. Multiple logistic regression analysis revealed that the following variables were associated with both insertive and receptive condom use: condom acceptability; a history of multiple and/or anonymous partners in the past six months, and the number of partners with whom one is "high" (drugs/alcohol) during sex. Knowledge of positive HIV serostatus was more strongly associated with receptive than with insertive use. Condom use is a relatively complex health-related behavior, and condom promotion programs should not limit themselves to stressing the dangers of unprotected intercourse.  相似文献   

13.
Sociological, psychological, and public health studies document that many gay and bisexual men may self-label by their anal penetrative role (i.e., bottom or exclusively receptive; top or exclusively insertive; or versatile, both receptive and insertive during anal intercourse). Yet, what orients men to think of themselves as tops, bottoms or versatiles is poorly understood. We surveyed 429 men engaging in same-sex anal intercourse to investigate the degree to which anal penetrative self-identity was concordant with actual penetrative behavior. Additionally, the roles of masculinity and physical body traits (e.g., penis size, muscularity, height, hairiness, and weight) were tested as correlates of anal penetrative identity and identity-behavior concordance. Tops and bottoms showed a high degree of concordance between identity and enacted behavior; however, only half of versatiles reported concordant identity and behavior (i.e., wanting to be versatile and actually reporting versatile behavior). Generally, tops reported larger penises than bottoms. They also reported being comparatively more masculine than bottoms. Versatiles fell somewhat between the tops and bottoms on these traits. Of the six independent variables, penis size and masculinity were the only two factors to influence concordance or discordance between identity and penetrative behavior. Our study suggests that the correlates of gay men’s sexual self-labels may depend on objective traits in addition to the subjective pleasure associated with receptive or insertive anal intercourse.  相似文献   

14.
Prevalence and determinants of HIV infection were assessed in 127 homosexual and bisexual men in the northeastern part of Italy. The overall prevalence of HIV seropositivity was still rather low: 20% (95% confidence interval -CI- 13-27%). The most important risk factor for acquiring HIV infection turned out to be having has sexual intercourses in high-risk areas. Relative risks (RRs) for those who have travelled and had sex in North Europe and in the U.S., were, respectively, 2.7 (95% CI: 1.0-7.3) and 5.6 (95% CI: 1.2-25.9). A significantly increased risk was also seen for having a steady sexual partner (RR = 3.1, 95% CI: 1.3-7.5). Use of nitrite inhalants, high number of occasional sexual partners and habitual receptive anal intercourses were also associated with elevation of risk, whereas prostitution was not. The present study confirms the patterns of HIV spread among homosexual and bisexual men from high-risk areas to low-risk areas and prompts urgent educational intervention, in order to prevent the epidemics of AIDS among Italian homosexuals from reaching the size documented in other countries.  相似文献   

15.
16.
目的 了解我国四城市男男同性恋人群(men who have sex with man,MSM)中,同性性取向者(同性恋)和性取向为异性或双性或未确定者(非同性恋)艾滋病病毒(human immunodeficiency virus,HIV)和梅毒感染状况,探讨MSM同性恋和非同性恋者感染HIV和梅毒的相关因素.方法 采用横断面调查的方法,以北京、哈尔滨、郑州和成都市为调查现场,通过“滚雪球”的方法在MSM人群中招募调查对象,调查内容包括社会人口学特征、性伴和性行为、HIV和梅毒抗体血清学检测.运用Epi Data 3.0软件建立数据库,使用SPSS 13.0软件进行统计分析.结果 共1 693名符合条件的MSM,其中同性恋和非同性恋者所占的比例分别为67.5%和32.5%.同性恋和非同性恋者HIV感染检出率分别为6.8%、7.1%,梅毒检出率分别为11.6%、13.3%.在同性恋者中,年龄在18 ~24岁及无收入者所占的比例为41.6%和22.1%,均高于非同性恋者(均有P<0.001).同性恋者感染HIV和梅毒的多因素分析结果显示,居住在成都市、在浴池等洗浴场所寻找性伴、男男肛交性角色仅做被插入方者或既做插入方又做被插入方者及感染梅毒者感染HIV的危险性增加,居住在哈尔滨市、在公园公厕寻找性伴、男男肛交性角色为仅做被插入方者或既做插入方又做被插入方者、男男肛交时未坚持使用安全套、HIV感染者和近6个月性伴数≥6个者感染梅毒的危险性增加;非同性恋者感染HIV和梅毒的多因素分析结果显示,居住在成都及感染梅毒者感染HIV的危险性增加,通过互联网寻找性伴者感染HIV的危险性降低,男男肛交时未坚持使用安全套及HIV感染者感染梅毒的危险性增加.结论 MSM人群同性恋和非同性恋亚群中HIV和梅毒均呈现高流行状态,两者的社会人口学构成及其HIV及梅毒感染的相关因素不尽相同,提示,在MSM人群中控制HIV和梅毒流行需要区别不同亚群的特点开展针对性干预策略和措施.  相似文献   

17.
There is evidence that risks for HIV and sexually transmitted infections among adolescent females are higher for those with older male sexual partners. Yet, little empirical research has been conducted with male adolescents who engage in sexual activity with older men. In this article, we summarize in a number of ways the range of sexual activity reported by an ethnically diverse sample of 200 gay and bisexual male youth (15–22 years old) in Chicago and Miami. A general pattern of progression from oral sex with men to both receptive and insertive anal sex with men appeared to characterize the sample during their adolescence. Further, there appeared to be a high degree of “versatile” positioning among the sexually active gay and bisexual young men, in both age-discrepant and age-concordant dyads. Risk analysis revealed having primarily age-concordant partners to be a significant predictor of sexual risk behavior. HIV risk among young gay and bisexual men engaging in sexual activity with older men may occur not only within a distinct biological context from their heterosexual counterparts, but also in a social context that may not as rigidly bound to traditional assumptions about age, gender, and power. The significant associations among participants with partners who were the same age and the risk behavior measures in this analysis have implications for HIV prevention efforts.  相似文献   

18.
Matched samples of homosexually active men were obtained using identical sampling methods in a city of one million people in 1986 and 1988. Data indicated that reported sexual behaviours had significantly changed in the direction of safer sex, particularly oral sex without ejaculation, anal sex with a condom (both insertive and receptive), which increased in frequency, and analingual and digitoanal receptive practices, wet kissing, and anal receptive intercourse generally, which decreased. Reported sources of education for both samples were primarily gay media and gay organisations. These data, with some caveats concerning design and comparability of samples, suggest that behavioural change in the appropriate direction has occurred in homosexually active men, and that gay organisations and media have been perceived as the most common source of information on safer sex in this population.  相似文献   

19.
Klein H 《Sexual health》2008,5(3):243-250
Men who have sex with men (MSM) account for the largest number of persons diagnosed with AIDS in the USA, with higher than average rates of drug use and unprotected sex being cited as the principal reasons underlying their high rates of HIV infection. Recent evidence has suggested that the use of websites specifically designed to promote unsafe sexual practices may be particularly common among MSM, thereby fostering their risky behaviours. In light of these findings, the present study is based on a content analysis of 1316 ads/profiles posted on one of the most popular MSM websites that specifically fosters unprotected sex. Ads/profiles were selected randomly based on the American ZIP code of residence. Data were collected between September 2006 and January 2007. Rates of advertised for high-risk sexual behaviours were very high, particularly for oral sex involving ejaculation into the mouth (88.0% for receptive oral sex, 77.4% for insertive oral sex), anal sex involving ejaculation into the anus (79.7% for insertive anal sex, 69.4% for receptive anal sex), multiple partner sex (77.9%) and felching (16.5%). A multivariate analysis of the correlates of sexual risk preferences identified seven factors that were related to a propensity towards enhanced sexual risk: younger age (beta = 0.12, P = 0.0001), not being African American (beta = 0.05, P = 0.0341), self-identification as a sexual 'bottom' (beta = 0.20, P = 0.0001), not caring about one's potential sex partners' HIV serostatus (beta = 0.15, P = 0.0001), preferring to have sex while under the influence of drugs (beta = 0.08, P = 0.0022), a greater involvement in and commitment to the use of the website to locate potential unprotected sex partners (beta = 0.16, P = 0.0001) and not being HIV-negative (beta = 0.08, P = 0.0081). The HIV intervention-related implications of these findings are discussed.  相似文献   

20.
目的 探讨影响男男性行为人群HIV传播的危险因素.方法 采用时间序列病例对照研究的研究方法,病例为江苏省2008年5-7月在南京、苏州、扬州市同时开展的针对男男性行为者(MSM)调查中发现的所有HIV感染者,对照为按照地区的入组时间进行1:4匹配的非感染者.调查问卷以2008年国家男男性行为人群综合防治试点工作问卷为核心并根据当地情况增加一些变量;采用拟合条件logistic回归模型对数据进行单因素和多因素分析.结果 调查中共发现62例阳性感染者,对照组匹配248名非感染者.单因素分析显示从未使用安全套、梅毒、性病相关症状及无保护性肛交为HIV感染的危险因素,其OR值分别为5.56(95%CI:1.82~16.96)、2.19(95%CI:1.18~4.05)、2.50(95%CI:1.13~5.50)和3.13(95%CI:1.64~5.98);通过互联网寻找性伴及性角色为0是感染HIV的保护性因素,其OR值分别为0.47(95%CI:0.22~0.998)和0.67(95%CI:0.23~1.97).多因素分析显示患梅毒、无保护性肛交、首次性行为年龄大是感染HIV的独立危险因素,其OR值分别为2.28(95%CI:1.05~4.94)、4.16(95%CI:1.63~10.66)、1.11(95%CI:1.04~1.18);而双性恋为感染HIV的保护性因素(OR=0.41,95%CI:0.18~0.97).结论 梅毒、无保护性肛交、首次发生男男性行为的年龄较大等因素是感染HIV的危险因素,性取向为双性是感染HIV的保护性因素.  相似文献   

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