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1.
Men who have sex with men and women (MSMW) represent an important target population for understanding the spread of HIV because of the inherent bridging aspect of their sexual behavior. Despite their potential to spread HIV between gender groups, relatively little recent data have been reported about this population as a subgroup distinct from men who have sex with men only. This paper analyzes data from the Chicago site of Sexual Acquisition and Transmission of HIV Cooperative Agreement Program to characterize 343 MSMW in terms of their demographics, drug use, sexual risk behavior, sexual identity, and sex partners. Results show the MSMW sample to be extremely disadvantaged; to have high rates of drug use, including injection and crack use; to report more female than male sex partners; to not differ from gay and heterosexual men in rates of condom use; and, for the most part, to report sexual identities that are consistent with their sex behavior. MSMW represent an important subpopulation in the HIV epidemic and should be targeted for risk reduction interventions.  相似文献   

2.
3.
Physical victimization has been linked to high-risk sexual partnerships in women. Although illicit drug-using heterosexual men are at high-risk of physical victimization, the association between violence and high-risk partners in heterosexual men has received little attention in the published literature. We examined the association between experience of severe physical victimization and acquisition of a high-risk sexual partner (i.e., a partner who injected drugs or participated in transactional sex) 1 year later among illicit drug-using men in New York City (2006–2009) using secondary cross-sectional data. Injection and non-injection drug-using men (n = 280) provided a retrospectively recalled history of risk behavior and violence for each year over the past 4 years. Our primary outcome was acquisition of a high-risk sexual partner in any year following the baseline year. Our primary exposure was severe physical victimization (i.e., threatened with a knife or gun, beaten up, shot, or stabbed) in the prior year. Frequency of cocaine, heroin, and crack use and sexual victimization were also assessed. Log-binomial logistic regression with generalized estimating equation (GEE) methods was used to account for repeated measures for up to four time points. After adjustment for important covariates, participants that experienced physical victimization were significantly more likely to have acquired a high-risk sexual partner 1 year later (relative risk (RR), 3.73; 95 % confidence interval (CI), 1.55–8.97). Our study challenges gender-based stereotypes surrounding physical victimization and provides support for multidisciplinary programs that address both violence and HIV risk among illicit drug-using heterosexual men.  相似文献   

4.
PurposeScreening for sexually transmitted infections (STIs) is a crucial element of improving health and reducing disparities, and young men who have sex with men (YMSM) face high rates of both STIs and human immunodeficiency virus. We examined sexual health screening among a diverse sample of adolescent YMSM living in New York City.MethodsBetween 2009 and 2011, cross-sectional data were collected from 590 YMSM in New York City. Separate multivariable logistic regression models were used to assess the relationship between sociodemographic, psychosocial, and health and healthcare related factors and two main outcomes: having sought a recent sexual health screening (past 6 months) and having a rectal sexual health screening (lifetime).ResultsOverall, 46% reported a sexual health screening in the prior 6 months, but only 16% reported ever having a rectal screening for STIs. Rates were higher among ethnic minority YMSM and men who accessed care at clinics. Multivariable results indicated that gay community affiliation, recent unprotected anal sex, and number of lifetime male partners were also associated with seeking a recent screening.ConclusionsThough half of the sample reported recent general screening, rates of lifetime rectal screening are low. Efforts to increase screening may focus on improving provider knowledge and guideline adherence, and educating and encouraging YMSM to access sexual health check-ups.  相似文献   

5.
Very little information exists with regard to sex party behaviors in young men who have sex with men (YMSM), often defined as men ranging in age from 13 to 29 years. The current analysis examines sex party attendance and behavior in a sample of 540 emergent adult gay, bisexual, and other YMSM in New York City, ages 18–29 years. Findings indicate that 8.7% (n = 47) of the sample had attended a sex party 3 months prior to assessment. Sex party attendees reported that parties included both HIV-positive and HIV-negative men; attendees also reported unprotected sex and limited access to condoms and lubricant. As compared with those who did not attend sex parties, those who did indicated significantly more lifetime and recent (last 3 months) casual sex partners, drug use (both number of different drugs used and total lifetime use), psychosocial burden (history of partner violence and number of arrests), and total syndemic burden (a composite of unprotected anal sex, drug use and psychosocial burden). These results indicate that while only a small percentage of the overall sample attended sex parties, the intersection of both individual risk factors coupled with risk factors engendered within the sex party environment itself has the potential to be a catalyst in the proliferation of the HIV/AIDS epidemic in urban settings. Lastly, given that sex parties are different than other sex environments, commercial and public, with regard to how they are accessed, public health strategies may need to become more tailored in order to reach this potentially highly risky group.  相似文献   

6.
Gay, bisexual, and other men who have sex with men (MSM) represent more new HIV infections than all other at-risk populations. Many young black MSM belong to constructed families (i.e., the house ball community, gay families, and pageant families) which are often organized in a family structure with members referred to as parents and children. Many constructed families are associated with a family surname which is informally adopted by members. In some cases, however, constructed families do not identify with a collective family name. In 2014, 553 MSM were recruited through venue-based time-space sampling during the National HIV Behavioral Surveillance (NHBS) in New Orleans to complete a structured survey and HIV test. Black, Latino, and other race MSM were more likely to belong to constructed families in comparison to white MSM. In addition, participants who belonged to constructed families with a family name were more likely to engage in protective behaviors including wearing condoms at last sexual intercourse. Overall, younger, white MSM who did not belong to any social groups were more likely to engage in at least one risk behavior. These findings significantly contribute to understanding variations in HIV risk behavior among members of constructed families.  相似文献   

7.
The aim of this study was to examine online profile and in-person communication patterns and their associations with unprotected anal intercourse (UAI) in online and offline partnerships between men who have sex with men (MSM) who have never tested for HIV ("Never Tested"), had been tested at least once for HIV ("Tested"), and had tested positive for HIV. Between September and November 2005, 2,716 MSM participated in a one-time online survey. Although 75% and 72% of the Tested and Never Tested groups disclosed a HIV-negative status in all of their online profiles, 17% of HIV-positive participants did so. Exchanging HIV status information was highest among the Tested group, while HIV-positive men were most likely to negotiate UAI. Serodisclosure was not an independent predictor of UAI, although making an explicit agreement to engage in UAI was. Sexual communication and risk-taking patterns differed by testing status. Explicit agreements to avoid UAI were associated with reduced sexual risk-taking. Misrepresentation of HIV status is an identified challenge for HIV prevention.  相似文献   

8.
[目的]了解男男性行为(MSM)人群性伴网络特征及该人群中高危性行为的发生情况,探讨性病(STDs)、人类免疫缺陷病毒(HIV)在该人群中传播及向普通人群传播的模式,为开展性病、艾滋病预防控制提供依据。[方法]通过艾滋病自愿咨询检测门诊、同性恋人群活动场所、同性恋QQ群内动员、"滚雪球"等途径寻找MSM人群,招募151人,采用面对面匿名问卷调查方式收集信息。[结果]151名被调查者中最近6个月有30人(19.9%)与异性发生过性行为,高危性行为的发生率为53.3%;与同性性活动情况,其中91人(60.3%)有同性固定性伴,76人(50.3%)与非固定同性性伴的人发生过多次男男性行为(简称有多次男性伴),77人(51.0%)发生过偶遇性行为(简称有偶遇男性伴),10人(6.6%)从事商业性行为。而在与固定性伴、多次男性伴、偶遇男性伴、商业性行为中高危性行为的发生率依次是69.2%、57.9%、50.6%、70.0%。与固定男性伴高危性行为的发生率高于与偶遇男性伴高危性行为的发生率(P=0.014)。最近6个月有2种及以上性伴类型占58.9%。30名已感染HIV者中有多次男性伴及偶遇男性伴类型的比例分别为53.3%和63.3%;有过多次男性伴、偶遇男性伴性行为者中发生高危性行为的比例分别为50.0%和63.2%。感染HIV者与固定男性伴发生高危性行为的率低于未感染HIV者(P=0.029)。[结论]MSM人群性伴网络复杂多样,高危性行为发生率高。不仅使HIV在该人群中容易传播,且该人群已成为向普通人群传播HIV的"桥梁"人群。  相似文献   

9.
As part of a wider study of Internet-using Latino men who have sex with men (MSM), we studied the likelihood that HIV-negative (n=200) and HIV-positive (n=50) Latino MSM would engage in sexual negotiations and disclosure of their HIV status prior to their first sexual encounters with men met over the Internet. We also analyzed the sexual behaviors that followed online encounters. Our results showed that both HIV-negative and positive men were significantly more likely to engage in sexual negotiation and serostatus disclosure on the Internet than in person. Those who engaged in sexual negotiations were also more likely to use condoms for anal intercourse. Compared to HIV-negative MSM, HIV-positive MSM were significantly less likely to disclose their serostatus, and 41% of them acknowledged having misrepresented their serostatus to a prospective sexual partner met over the Internet. Although similar proportions of HIV-positive and negative men had condomless anal intercourse, HIV-positive MSM were more likely to report lack of intention to use condoms. Pleasure was the reason most frequently cited for lack of condom use. Cybersex was reported by only one-fifth of the sample. We conclude that the Internet, an understudied milieu of sexual networking, may present new possibilities for the implementation of risk reduction strategies, such as the promotion of sexual negotiation prior to first in-person encounter and serostatus disclosure.  相似文献   

10.
Increasingly, studies show that characteristics of the urban environment influence a wide variety of health behaviors and disease outcomes, yet few studies have focused on the sexual risk behaviors of men who have sex with men (MSM). This focus is important as many gay men reside in or move to urban areas, and sexual risk behaviors and associated outcomes have increased among some urban MSM in recent years. As interventions aimed at changing individual-level risk behaviors have shown mainly short-term effects, consideration of broader environmental influences is needed. Previous efforts to assess the influence of environmental characteristics on sexual behaviors and related health outcomes among the general population have generally applied three theories as explanatory models: physical disorder, social disorganization and social norms theories. In these models, the intervening mechanisms specified to link environmental characteristics to individual-level outcomes include stress, collective efficacy, and social influence processes, respectively. Whether these models can be empirically supported in generating inferences about the sexual behavior of urban MSM is underdeveloped. Conceptualizing sexual risk among MSM to include social and physical environmental characteristics provides a basis for generating novel and holistic disease prevention and health promotion interventions. Frye, Latka, Putnam, Galea, and Vlahov are with the Center for Urban Epidemiologic Studies, New York Academy of Medicine, 1216 Fifth Avenue, New York, NY 10029, USA; Koblin is with the New York Blood Center, New York, NY, USA; Halkitis is with the Department of Applied Psychology, New York University, New York, NY, USA; Vlahov is with the Department of Epidemiology, Columbia University, New York, NY, USA; Galea is with the Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA.  相似文献   

11.
I examined sociodemographic, sexual, and HIV and other sexually transmitted disease risk differences among homosexual- and nonhomosexual-identified men who have sex with men (MSM) in the United States. Non-Mexican Latino ethnicity, marriage or cohabitation, religiosity, and incarceration history were positively associated with being nonhomosexual identified. Being nonhomosexual identified was associated with some risk (e.g., more sexual intercourse while intoxicated) and protective (e.g., fewer male partners) behaviors. Probabilistic sampling strategies may be useful in future research and intervention efforts.Does being nonhomosexual-identified affect sexual behaviors and susceptibility to HIV and other sexually transmitted diseases (STDs) in men who have sex with men (MSM)? Risk and protective factors have been found in relation to nonhomosexual identities, and nonhomosexual-identified and homosexual-identified MSM likely have different sociodemographic profiles.113 However, because few studies use probability-based sampling methods, the scientific community''s understanding of MSM may be limited.5,6,13,14 In this study, I used a nationally representative, probabilistic sample to examine sociodemographic, sexual, and HIV or STD risk differences among nonhomosexual-identified and homosexual-identified MSM (and22).

TABLE 1

Results of Logistic Regression Models of Nonhomosexual Identity Regressed on Sociodemographic Covariates: United States, National Survey of Family Growth, 2002
Unweighted No.
Weighted %
Odds Ratioa (95% Confidence Interval)
NonhomosexualHomosexual IdentifiedNonhomosexual IdentifiedHomosexual IdentifiedUnadjustedAdjustedb
Race/ethnicity
    African American271419.010.72.85** (1.06, 7.66)1.39 (0.50, 3.82)
    Mexican15514.53.37.13† (2.54, 20.00)2.21 (0.67, 7.35)
    Non-Mexican Latino171113.96.03.74*** (1.44, 9.73)2.95** (1.17, 7.44)
    Other224.42.33.11 (0.24, 40.98)0.83 (0.03, 23.46)
    White (Ref)446548.277.71.001.00
Age, y29.532.00.96* (0.93, 1.00)0.97 (0.93, 1.01)
Education, y12.813.70.88* (0.78, 1.01)0.98 (0.82, 1.16)
Income (14-category ordinal variable)c7.79.50.89*** (0.82, 0.98)0.98 (0.88, 1.09)
Married or cohabiting with a woman14420.21.813.45† (3.77, 48.04)5.05** (1.26, 20.32)
Religiosityd5.74.11.45† (1.21, 1.75)1.33*** (1.07, 1.64)
Small town or rural residence12515.73.65.03† (1.98, 12.79)2.30 (0.70, 7.59)
Incarceration (lifetime)351839.221.12.42** (1.06, 5.52)2.39** (1.05, 5.45)
Foreign birth19814.55.42.97* (0.90, 9.81)2.34 (0.61, 8.98)
Open in a separate windowNote. All analyses include the full sample (N = 202). Ellipses indicate the data were not applicable.Source. Data are from the National Center for Health Statistics.15aHomosexual-identified men who have sex with men (MSM) were the reference category.bMultivariate analyses were adjusted for all sociodemographic predictors.cThe median income for nonhomosexual-identified MSM was between $20 000 and $24 999. The median income for gay-identified MSM was between $30 000 and $34 999.dReligiosity was measured with an 8-category index based on attendance at religious events and the importance of religion.*P < .10; **P < .05; ***P < .01; †P < .001.

TABLE 2

Results of Logistic Regression Models of Sexual Behavior Patterns and HIV or Sexually Transmitted Disease (STD) Risks Regressed on Non-Gay Identity: United States, National Survey of Family Growth, 2002
Unweighted No.
Weighted %
Odds Ratioa (95% Confidence Interval)
Nonhomosexual IdentifiedHomosexual IdentifiedNonhomosexual IdentifiedHomosexual IdentifiedUnadjustedAdjustedb
Sexual behavior patterns
    Sexual contact with women, past y55656.76.817.89† (5.73, 55.86)17.66† (5.18, 60.17)
    ≥ 4 female partners, lifetime631868.338.13.50*** (1.50, 8.17)4.14*** (1.56, 10.97)
    ≥ 4 male partners, lifetime538257.990.80.14† (0.05, 0.36)0.14† (0.05, 0.36)
    ≥ 2 female partners, past yc28152.340.31.62 (0.14, 18.65)1.49 (0.13, 17.42)
    ≥ 2 male partners, past y506057.764.30.76 (0.37, 1.55)0.90 (0.42, 1.93)
    Oral sex only with men, lifetime29326.52.812.41† (3.12, 49.27)12.13† (2.77, 53.02)
    Insertive anal intercourse only with men, lifetimed191023.111.82.24* (0.86, 5.88)3.16** (1.08, 9.19)
    Receptive anal intercourse only with men, lifetime11426.63.011.90† (3.26, 43.44)11.55† (2.68, 49.85)
    Insertive and receptive anal intercourse, lifetime468050.385.20.18† (0.08, 0.41)0.15† (0.06, 0.35)
HIV or STD risks
    STD treatment, past y161220.410.62.15 (0.61, 7.57)1.81 (0.51, 6.38)
    Chlamydia, past ye7340.123.52.18 (0.24, 19.95)0.45 (0.02, 8.75)
    Gonorrhea, past y8541.731.31.57 (0.19, 13.27)0.31 (0.02, 4.80)
    Genital warts, lifetime121212.19.71.29 (0.50, 3.33)1.39 (0.52, 3.66)
    Herpes, lifetime13912.811.41.15 (0.33, 3.96)1.08 (0.29, 4.08)
    Syphilis, lifetime7813.45.02.93* (0.88, 9.76)3.23* (0.93, 11.30)
    Condom use with last woman, lifetime554358.542.81.89* (0.96, 3.72)1.79* (0.90, 3.57)
    Condom use with last man, lifetime484249.038.11.56 (0.81, 3.01)1.62 (0.81, 3.22)
    HIV test, any, lifetime758768.585.50.37** (0.15, 0.90)0.49 (0.18, 1.31)
    STD test, past y364036.240.40.84 (0.41, 1.72)0.81 (0.40, 1.66)
Sexual intercourse while intoxicated with drugs or alcohol (at least half the time), past y271728.216.02.06* (0.93, 4.54)2.22** (1.05, 4.66)
Intravenous drug use, past y425.91.15.56 (0.61, 50.65)4.08 (0.60, 27.76)
Sex in exchange for money or drugs, past y14515.08.81.81 (0.49, 6.78)1.82 (0.47, 7.09)
Open in a separate windowSource. Data are from the National Center for Health Statistics.15aHomosexual-identified men who have sex with men (MSM) were the reference category.bOdds ratios were adjusted for age, race/ethnicity, and educational level.cAnalyses for 2 or more female partners only included men who had sex with a woman in the past year.dMeasures for insertive, receptive, and both anal intercourse roles indicate lifelong behavior patterns among those who ever had anal intercourse. All 3 patterns are mutually exclusive.eHistory of chlamydia and gonorrhea were assessed only for MSM treated for an STD in the previous year.*P < .10; **P < .05; ***P < .01; †P < .001.  相似文献   

12.
We describe the behavioral characteristics and sexually transmitted disease (STD) prevalence of Chinese men who have sex with men (MSM) (n = 41) from a national probability sample of men (n = 1861). Most MSM were partnered with females (97%) and had a low rate of consistent condom use (7%). More MSM than heterosexual men self-reported a prior STD and risky sexual behaviors. MSM may act as a bridge for HIV transmission to female partners. Targeted interventions may help prevent a generalized HIV epidemic in China.In some parts of China, HIV prevalence has exceeded 1% of the general population.1,2 Men who have sex with men (MSM) accounted for 7.3% of HIV infections3 and 11% of new HIV infections in 2007.4 The proportion of HIV infections among MSM is likely to grow, as studies have documented increasing HIV prevalence and high prevalence of risky sexual behaviors and of sexually transmitted diseases (STDs) among this population.512MSM may serve as a bridge population for transmitting HIV to the general population. Empirical data have shown that a large proportion of Chinese MSM are either married or have female sex partners.5,13 High-risk sexual behaviors with both male and female partners among MSM are also common. Surveys have documented extremely high rates of inconsistent condom use with female partners.1315 We report the sociodemographic and sexual behavioral characteristics and the STD prevalence of a national probability sample of Chinese heterosexual men and men who had homosexual experiences.  相似文献   

13.
Recent studies have examined sleep health among men who have sex with men (MSM), but no studies have examined associations of neighborhood characteristics and sleep health among this population. The purpose of this study was to examine associations between perceived neighborhood safety and sleep health among a sample of MSM in Paris, France. We placed broadcast advertisements on a popular smartphone application for MSM in October 2016 to recruit users in the Paris (France) metropolitan area (n = 580). Users were directed to complete a web-based survey, including previously used items measuring perceptions of neighborhood safety, validated measures of sleep health, and socio-demographics. Modified Poisson models were used to estimate risk ratios (RRs) and 95% confidence intervals (CI) for the associations between perceived neighborhood safety and the following outcomes: (1) poor sleep quality, (2) short sleep duration, and (3) self-reported sleep problems. Poor sleep health was common in our sample; e.g., 30.1% reported poor sleep quality and 44.7% reported problems falling asleep. In multivariate regression models, perceived neighborhood safety was associated with poor sleep quality, short sleep duration, and having sleep problems. For example, reporting living in a neighborhood perceived as unsafe during the daytime (vs. safe) was associated with poor sleep quality (aRR, 1.60; 95% CI, 1.01, 2.52), short sleep duration (aRR, 1.92; 95% CI, 1.26, 2.94), problems falling asleep (aRR, 1.57; 95% CI, 1.17, 2.11), and problems staying awake in the daytime (aRR, 2.16; 95% CI, 1.05, 4.43). Interventions to increase neighborhood safety may improve sleep health among MSM.  相似文献   

14.
Young men who have sex with men (YMSM) are at alarming risk for HIV acquisition, demonstrating the highest rates of incident infection of any age-risk group. GRINDR is a global positioning service-based social networking application popular with YMSM for sexual partnering. To assess the characteristics of YMSM who use GRINDR, we conducted a computer-assisted self-interview-based survey of 375 YMSM using GRINDR in metropolitan Los Angeles, recruited using the GRINDR platform. The median age was 25 (interquartile range, 22–27) years old, 42.4 % caucasian, 6.4 % African American, 33.6 % Latino, and 14.1 % Asian/Pacific Islander. Participants reported high rates of sexual partnering and unprotected anal intercourse (UAI). The majority (70 %) of those reporting unprotected anal intercourse reported low perception of HIV-acquisition risk. Of the participants, 83.1 % reported HIV testing within the past 12 months; 4.3 % had never been HIV tested. Of the participants, 4.5 % reported HIV-positive serostatus; 51.7 % indicated that they would be interested in participating in a future HIV prevention trial. Latinos were more likely than either caucasians or African Americans to endorse trial participation interest (odds ratio, 1.9; 95 % confidence interval [1.1–3.3]). HIV-positive test results were associated with increased number of anal sex partners in the past 3 months (adjusted odds ratio (AOR), 1.53 [0.97–2.40]), inconsistent inquiry about partners’ serostatus (AOR, 3.63 [1.37–9.64]), reporting the purpose for GRINDR use including “friendship” (AOR, 0.17 [0.03–1.06), and meeting a sexual partner in a bookstore in the past 3 months (AOR, 33.84 [0.99–1152]). Men recruited via GRINDR were high risk for HIV acquisition or transmission and interested in clinical trial participation, suggesting potential for this method to be used for recruitment of YMSM to HIV prevention trials.  相似文献   

15.

Black men who have sex with men and women (BMSMW) experience pressure to fill hypermasculine ideals and may not identify with “gay” cultural norms. Existing measures of gender role expectations and internalized homophobia are not culturally appropriate for BMSMW. Researchers generally measure categorical identification with race, gender, and sexual orientation groups separately, whereas BMSMW may identify with multiple categories. We modified the Gender Role Conflict Scale to create the M-GRCS and the Internalized Homophobia Scale to include biphobia (Internalized Bi/Homophobia Scale, IBHS). To examine identification at the intersection of race, gender, and sexual orientation, we created 11 Integrated Race and Sexuality Scale (IRSS) items. With data from 429 BMSMW, we conducted exploratory factor analysis of the 59 items using categorical principal axis factoring with unweighted least squares extraction and Promax factor rotation. We created simple-summated multi-item scales and evaluated their construct validity. The rotated solution yielded four factors with 47 items and a simple factor structure: M-GRCS defined two factors (α?=?.93 for restricted emotionality/affection; .87 for success/power/competition); the IBHS (α?=?.89) and IRSS (α?=?.74) each defined a single factor. The IRSS factor was positively correlated with the Lukwago Racial Pride Scale, r(417)?=?.40. The IBHS factor was negatively correlated with the IRSS factor, r(414) = ? .22. The two M-GRCS factors suggest that the construct of hypermasculinity impacts BMSMW. The high IBHS reliability indicates that homophobia and biphobia were positively correlated in this sample. These three scales have potential for future studies with BMSMW.

  相似文献   

16.
Race-based sexual preferences in the online profiles of men who have sex with men (MSM) may be relevant for understanding the sexual health of this population, including racial/ethnic disparities in HIV infection. In October 2011, a content analysis was conducted of the profiles of Boston-area members of a racially diverse website for MSM. The present analysis formatively examined the use of demographic and partner selection criteria by race/ethnicity appearing in the profiles of men who indicated race-based partner preferences (n = 89). Latino men were the most frequently preferred race (54 %), followed by White (52 %), Black (48 %), and Asian (12 %) men. In separate multivariable models adjusted for age and HIV status disclosure, wanting low-risk foreplay was associated with a preference for White men (aOR) = 4.27; 95 % CI = 1.70–10.75; p = 0.002), while wanting group sex was associated with a preference for Black (OR = 2.28; 95 % CI = 1.08–4.81; p = 0.03) and Latino men (OR = 2.56; 95 % CI = 1.25–5.23; p = 0.01). Future studies are needed to replicate findings in larger online samples. Mixed-methods research should explore how racial and behavioral preferences impact the sexual mixing patterns and health of MSM online in urban areas.  相似文献   

17.
Black men who have sex with men (MSM) are disproportionately affected with HIV in the US. Limited event-specific data have been reported in Black MSM to help understand factors associated with increased risk of infection. Cross-sectional National HIV Behavioral Surveillance Study data from 503 MSM who reported ≥1 male sexual partner in the past year in New York City (NYC) were analyzed. Case-crossover analysis compared last protected and last unprotected anal intercourse (UAI). A total of 503 MSM were enrolled. Among 349 tested for HIV, 18% were positive. Black MSM (N = 117) were more likely to test HIV positive and not know their HIV-positive status than other racial/ethnic groups. Case-crossover analysis of 208 MSM found that men were more likely to engage in protected anal intercourse with a first time partner and with a partner of unknown HIV status. Although Black MSM were more likely to have Black male partners, they were not more likely to have UAI with those partners or to have a partner aged >40 years. In conclusion, HIV prevalence was high among Black MSM in NYC, as was lack of awareness of HIV-positive status. Having a sexual partner of same race/ethnicity or older age was not associated with having UAI among Black MSM.  相似文献   

18.
Archives of Sexual Behavior - Despite being grouped together in epidemiological risk categories, gay, bisexual, and other men who have sex with men (GBM) are not a homogenous group. In addition to...  相似文献   

19.
Objectives: The first 215 drug-using men who have sex with men (DU-MSM) evaluated for possible participation in a controlled behavioral intervention study were tested for Hart's law of inverse access, which predicts that access to prevention resources varies inversely to need. Methods: Hepatitis B vaccination, mental health, and substance abuse treatment were used to measure health resource use; hepatitis B (HBV) and HIV infections and unsafe sex measured preventive care needs. Socioeconomic status indicators included education, ethnicity, and income. Results: HBV-vaccinated men were more likely to be white and college educated. HBV-infected men were more likely to be black, older, HIV-positive, and have higher rates of substance use with sex. When stratified according to socioeconomic status indicators, levels of HBV vaccination were inverse to the rates of HBV and HIV infection. This relationship was not found for psychosocial treatment utilization. Conclusions: Demonstration of Hart's law among high-risk DU-MSM has important implications for future HIV prevention efforts among high-risk individuals. Combining HIV, hepatitis, and substance abuse prevention in primary care and substance abuse treatment settings is discussed.  相似文献   

20.
The purpose of the study was to determine the potential contribution of bisexual men to the spread of HIV in Los Angeles. We compare the characteristics and behaviors of men who have sex with men and women (MSMW) to men who have sex with only women (MSW) and men who have sex with only men (MSM) in Los Angeles. Men (N = 1,125) who participated in one of the two waves of data collection from 2005 to 2007 at the Los Angeles site for NIDA’s Sexual Acquisition and Transmission of HIV—Cooperative Agreement Program were recruited using Respondent Driven Sampling. Participants completed Audio Computer Assisted Self Interviews and received oral HIV rapid testing with confirmatory blood test by Western Blot and provided urine specimens for detection of recent powder cocaine, crack cocaine, methamphetamine, or heroin use. MSM, MSW, or MSMW were defined by the gender of whom they reported sex with in the past 6 months. Chi-square tests and ANOVAs were used to test independence between these groups and demographic characteristics, substance use, and sexual behaviors. We fit generalized linear random intercept models to predict sexual risk behaviors at the partner level. Men were mostly of low income, unemployed, and minority, with many being homeless; 66% had been to jail or prison, 29% had ever injected drugs, and 25% had used methamphetamine in the past 30 days. The sample had high HIV prevalence: 12% of MSMW, 65% of MSM, and 4% of MSW. MSMW were behaviorally between MSW and MSM, except that more MSMW practiced sex for trade (both receiving and giving), and more MSMW had partners who are drug users than MSW. Generalized linear random intercept models included a partner-level predictor with four partner groups: MSM, MSMW-male partners, MSMW-female partners, and MSW. The following were significantly associated with unprotected anal intercourse (UAI): MSW (AOR 0.15, 95% CI 0.08, 0.27), MSMW-female partners (AOR 0.4, 95% CI 0.27, 0.61), HIV-positive partners (AOR 2.03, 95% CI 1.31, 3.13), and being homeless (AOR 1.37, 95% CI 1.01, 1.86). The factors associated with giving money or drugs for sex were MSMW-female partners (AOR 1.70, 95% CI 1.09, 2.65), unknown HIV status partners (AOR 1.72, 95% CI 1.29, 2.30), being older (AOR 1.02, 95% CI 1.00, 1.04), history of incarceration (AOR 1.64, 95% CI 1.17, 2.29), and being homeless (AOR 1.73, 95% CI 1.27, 2.36). The following were associated with receiving money or drugs for sex: MSW (AOR 0.53, 95% CI 0.32, 0.89), African American (AOR 2.42, 95% CI 1.56, 3.76), Hispanic (AOR 1.85, 95% CI 1.12, 3.05), history of incarceration (AOR 1.44, 95% CI 1.04, 2.01), history of injecting drugs (AOR 1.57, 95% CI 1.13, 2.19), and had been recently homeless (AOR 2.14, 95% CI 1.57, 2.94). While overall HIV-positive MSM had more UAI with partners of any HIV status than MSMW with either partner gender, among HIV-positive MSMW, more had UAI with HIV-negative and HIV status unknown female partners than male partners. Findings highlight the interconnectedness of sexual and drug networks in this sample of men—as most have partners who use drugs and they use drugs themselves. We find a concentration of risk that occurs particularly among impoverished minorities—where many men use drugs, trade sex, and have sex with either gender. Findings also suggest an embedded core group of drug-using MSMW who may not so much contribute to spreading the HIV epidemic to the general population, but driven by their pressing need for drugs and money, concentrate the epidemic among men and women like themselves who have few resources.  相似文献   

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