The HIV epidemic among older men who have sex with men

The authors present HIV prevalence and risk behavior data for urban men who have sex with men (MSM) aged 50 years or older. Data are based on a probability sample of MSM conducted in 1997 (n = 2881 total; 507 older MSM) in New York, Los Angeles, Chicago, and San Francisco. The authors determined HIV status through self-report and biologic measures. Risk behavior was assessed through self-report. The authors found that HIV prevalence was 19% (95% CI: 14, 25) for men in their 50s and 3% (95% CI: 1, 10) for men in their 60s. No men in their 70s were HIV-positive. Prevalence was at high levels for older blacks (30%), MSM who are injection drug users (21%), moderately heavy drug users (35%), and less closeted men (21%). High-risk sex between serodiscordant partners was relatively constant (4%-5%) across age groups older than 30 years of age and decreased among MSM in their 70s. Current levels of HIV among older urban MSM in the United States are very high, particularly among those in their 50s. High mortality rates among MSM with AIDS up to 1996 (before highly active antiretroviral therapy [HAART]) would account for the lower levels among men in their 60s and 70s. Because of HAART, we would expect HIV levels to increase in these age groups. Given high levels of risk behavior among MSM through the sixth decade of life, the authors would expect an older MSM epidemic of substantially larger proportion than that observed in the 1980s and 1990s.     

Importance of sex partner HIV status in HIV risk assessment among men who have sex with men

Clinical HIV risk assessments have not typically integrated questions about sex partners' HIV status with questions about condom use and type of sex. Since 2001, we have asked all men who have sex with men (MSM) evaluated in an urban sexually transmitted disease (STD) clinic how often in the preceding 12 months they used condoms for anal sex with partners who were HIV-positive, HIV-negative, and of unknown HIV status. Overall, MSM displayed a pattern of assortative mixing by HIV status, particularly for unprotected anal intercourse (UAI). Nevertheless, 433 (27%) of 1580 MSM who denied knowing they were HIV-positive and 93 (43%) of 217 HIV-positive MSM reported having UAI with a partner of opposite or unknown HIV status. Among men who denied previously knowing they were HIV-positive, 24 (9.6%) of 251 MSM who reported having UAI with an HIV-positive partner or partner of unknown HIV status compared with 11 (1.7%) of 620 MSM who denied such exposure tested HIV-positive (odds ratio=5.8, 95% confidence interval: 2.8-12.1). UAI with an HIV-positive partner or partner with unknown HIV status was 69% sensitive and 73% specific in identifying men with previously undiagnosed HIV infection; UAI regardless of partner HIV status was 80% sensitive but only 45% specific. The positive predictive value was highest for risk assessments that included partner HIV status. Integrating questions about anal sex partner HIV status and condom use identifies MSM at greatest risk for HIV acquisition and transmission. These risk criteria might be effectively used to triage MSM into more intensive prevention interventions.     

Psychosocial correlates of HIV-monoinfection and HIV/HCV-coinfection among men who have sex with men

Rates of hepatitis C virus (HCV) among HIV-positive men who have sex with men (MSM) appear to be high and rising. In other demographic groups, HIV/HCV-coinfection is associated with poor physical and psychological outcomes. In this study, we examined health-related and psychosocial correlates of HIV/HCV-coinfection in a clinic sample of MSM. Cross-sectional data were collected from 171 MSM. One-third of the sample was coinfected. Higher rates of depressive and PTSD symptoms were observed in coinfected patients. Coinfected men were more likely to report perfect 30-day medication adherence, but exhibited lower CD4 cell counts and more past year emergency room visits. Despite consistent engagement with care and higher rates of medication adherence, HIV/HCV-coinfected MSM exhibited significantly more mental health problems. Medical and mental health providers should be especially attentive to the mental health status of HIV/HCV-coinfected MSM, despite adequate health behaviors and physical health status.     

北京市男男性接触者人乳头瘤病毒及人类免疫缺陷病毒感染状况调查

目的 了解北京市男男性接触者人乳头瘤病毒和人类免疫缺陷病毒感染情况,并分析其影响因素.方法 通过男男非政府组织招募志愿者,进行一对一访谈,并开展血清学检测及人乳头瘤病毒DNA分型.结果 被调查的283名男男性接触者,人类免疫缺陷病毒感染率为10.25%,人乳头瘤病毒感染率为70.67%.按照HPV不同感染情况和感染HP...     

Research needed to more effectively combat HIV among African-American men who have sex with men

It is estimated that nearly half of all African-American men who have sex with men (AAMSM) living in major U.S. cities are already infected with HIV. Without a substantial and committed investment in research in HIV prevention among AAMSM and subsequent evidence-based policies and community programs, it is unlikely that we will ever be able to curtail the HIV epidemic among African Americans in general, regardless of gender, age or sexual orientation. In this paper, we briefly review what is known and what research questions remain in order to curtail the epidemic among AAMSM. Finally, we provide recommendations for future research that include the: 1) development of a national cohort of young AAMSM to prospectively study biological, behavioral, social and contextual factors that place AAMSM at risk for infection with HIV and other STDs; 2) adapting existing interventions in HIV prevention to the unique characteristics of AAMSM and evaluating their effectiveness; 3) evaluating factors such as intracommunity and familial discrimination against AAMSM that may lead to lack of disclosure; and 4) enhancing our understanding of how cultural and social factors can be used in a positive and self-affirming way to strengthen HIV prevention and care for AAMSM.     

Risk factors for missed HIV primary care visits among men who have sex with men

Benefits of anti-retroviral therapy (ART) depend on consistent HIV care attendance. However, appointment non-adherence (i.e. missed appointments) is common even in programs that reduce financial barriers. Demographic, health/treatment, and psychosocial contributors to appointment non-adherence were examined among men who have sex with men (MSM) attending HIV primary care. Participants (n = 503) completed questionnaires, and HIV biomarker data were extracted from medical records. At 12 months, records were reviewed to assess HIV primary care appointment non-adherence. Among MSM, 31.2% missed without cancellation at least one appointment during 12-month study period. Independent predictors (P < 0.05) were: low income (OR = 1.87); African American (OR = 3.00) and Hispanic/Latino (OR = 4.31) relative to non-Hispanic White; depression (OR = 2.01); and low expectancy for appointments to prevent/treat infection (OR = 2.38), whereas private insurance (OR = 0.48) and older age (OR = 0.94) predicted lower risk. Low self-efficacy predicted marginal risk (OR = 2.74, P = 0.10). The following did not independently predict risk for non-adherence: education, relationship status, general health, time since HIV diagnosis, ART history, post-traumatic stress disorder, HIV stigma, or supportive clinic staff. Appointment non-adherence is prevalent, particularly among younger and racial/ethnic minority MSM. Socioeconomic barriers, depression and low appointment expectancy and self-efficacy may be targets to increase care engagement.     

HIV infection and human herpesvirus-8 oral shedding among men who have sex with men

Human herpesvirus-8 (HHV-8) is frequently detected in oropharyngeal secretions from HIV-infected men who have sex with men (MSM), and contact with saliva may be an important mode of HHV-8 transmission. A total of 196 MSM were followed over 2 years to determine the correlates of HHV-8 oropharyngeal shedding. A total of 134 (68%) of 196 participants were HHV-8 seropositive upon enrollment, and 9 (15%) of 62 participants seroconverted to HHV-8 during follow-up. HHV-8 DNA was detected in 43 (22%) of 196 participants: 39 (27%) of 134 HHV-8 seropositive, 4 (8%) of 53 HHV-8 seronegative, and 5 (56%) of 9 seroconverters to HHV-8. HHV-8 was detected in 101 (15%) of 696 total oral specimens: 84 (17%) of 481 samples from HHV-8-seropositive men, 6 (3%) of 180 samples from HHV-8-seronegative men, and 11 (31%) of 35 samples from seroconverters. Using adjusted marginal structural models, HHV-8 shedding was higher in men not receiving highly active antiretroviral therapy (odds ratio 2.4, 95% CI 1.0-6.0, P = 0.06), with CD4 counts > 200 cells/mm (odds ratio 4.8, 95% CI 1.0-22.8, P = 0.05), or with detectable oral leukocyte esterase (odds ratio 5.0, 95% CI 2.0-12.5, P < 0.01). CD4 count, antiretroviral therapy, and oral inflammation may influence HHV-8 oropharyngeal shedding.     

A meta-analytic review of HIV behavioral interventions for reducing sexual risk behavior of men who have sex with men

This meta-analysis examines the efficacy of international HIV prevention interventions designed to reduce sexual risk behavior of men who have sex with men (MSM). We performed a comprehensive search of published and unpublished English-language reports of HIV prevention interventions that focus on MSM and evaluated changes in risky sexual behavior or biologic outcomes related to sexual risk. Data from 33 studies described in 65 reports were available as of July 2003. Studies with insufficient data to calculate effect sizes were excluded from the meta-analysis. Interventions were associated with a significant decrease in unprotected anal intercourse (odds ratio [OR] = 0.77, 95% confidence interval [CI]: 0.65-0.92) and number of sexual partners (OR = 0.85, 95% CI: 0.61-0.94) and with a significant increase in condom use during anal intercourse (OR = 1.61, 95% CI: 1.16-2.22). Interventions successful in reducing risky sexual behavior were based on theoretic models, included interpersonal skills training, incorporated several delivery methods, and were delivered over multiple sessions spanning a minimum of 3 weeks. Behavioral interventions provide an efficacious means of HIV prevention for MSM. To the extent that proven HIV prevention interventions for MSM can be successfully replicated in community settings and adapted and tailored to different situations, the effectiveness of current HIV prevention efforts can be increased.     

Mental health and HIV risk in men who have sex with men

Evidence-based HIV prevention interventions with men who have sex with men (MSM) in the United States have moderate effect sizes in reducing HIV sexual risk behavior. Mental health and psychosocial problems, which both disproportionately affect MSM populations and are implicated in HIV transmission risk behaviors, also likely interfere with the uptake of HIV behavioral interventions. Moreover, given that mental health and psychosocial problems such as depression, substance use, and violence frequently co-occur for many MSM (eg, as syndemic conditions), what is probably needed are combination prevention efforts, or prevention "cocktails," similar to treatment "cocktails," that address the psychological and behavioral mechanisms that interact to produce elevated risk for HIV. Such interventions should incorporate a holistic framework to address the sexual health and overall well being of MSM. Addressing co-occurring psychosocial risk factors is apt to improve effect sizes of current HIV prevention interventions and allow for more effective uptake by MSM.     

HIV prevalence and sexual risk behaviors among men who have sex with men: results from a statewide population-based survey in California

OBJECTIVES: To investigate HIV prevalence, sexual risk behaviors, and HIV testing among men who have sex with men (MSM) between 18 and 64 years old living in California. DESIGN: Cross-sectional study of a statewide population-based sample of MSM. METHODS: Using data from the 2001 California Health Interview Survey (CHIS 2001), 398 men who self-identified as gay or bisexual were recontacted and interviewed by telephone for a follow-up study in 2002. Study participants were interviewed regarding their demographic characteristics and sexual behavior, HIV testing history, and HIV infection status. Those who self-reported as HIV-negative or of unknown status were offered an HIV test using a home urine specimen collection kit. RESULTS: HIV prevalence among MSM in California was 19.1% (95% confidence interval [CI]: 12.8% to 25.3%) with higher rates seen among the following subgroups: high school or less education (40.4%), annual income less than dollar 20,000 (35.0%), or history of ever injecting recreational drugs (40.3%). Young age and Hispanic or African-American race/ethnicity were associated with higher proportions of risky sexual behavior and lower HIV testing rates. CONCLUSIONS: HIV prevalence among MSM living in California continues to be high across the whole state, and population-based studies are needed periodically to complement findings from surveys using other sampling designs.     

Risky sexual practices and hepatitis C viremia among HIV-positive men who have sex with men in Taiwan

BackgroundUnderstanding the risk behaviors associated with sexually-transmitted hepatitis C virus (HCV) infection among men who have sex with men (MSM) may inform the public health policies and interventions aiming to achieve HCV microelimination.MethodsHIV-positive MSM who had one of the following conditions were enrolled to undergo face-to-face questionnaire interviews to collect information on their sexual practices in the past 12 months: (1) elevation of aminotransferases in the past 6 months; (2) acquisition of sexually transmitted infections in the past 6 months; and (3) previous HCV infections. Plasma HCV RNA were tested at enrolment and every 3 months during follow-up. Baseline characteristics and risky behaviors were compared to identify factors associated with HCV viremia between HCV-viremic MSM and HCV-aviremic MSM in multivariate analysis.ResultsAmong 781 MSM with a median age of 36 years, 57 (7.3%) had HCV viremia and 724 (92.7%) no HCV viremia during follow-up. A high proportion (38.9%) of the participants reported having used recreational drugs in the past 12 months, with 34.4% of them having slamming, but only 4.8% reported having shared their injection equipment. In multivariate analysis, use of recreational drugs (adjusted odds ratio [aOR], 2.14; 95% CI, 1.16–3.96), having participated in group sex (aOR, 2.35; 95% CI 1.24–4.40) and having had condomless receptive anal intercourse (aOR, 1.97; 95% CI 1.07–3.62) were significantly associated with HCV viremia.ConclusionAmong high-risk HIV-positive MSM, use of recreational drugs and risky sexual contacts were associated with HCV viremia, suggesting the mucosal contacts as the major route of HCV transmission.     

HIV检测对MSM人群艾滋病感染风险的影响

目的分析艾滋病检测对MSM人群知识、行为与感染HIV风险的影响,为调整MSM人群艾滋病防治策略提供依据。方法以过去一年接受过艾滋病检测的MSM人群为干预组,未接受过艾滋病检测的为对照组,比较两组的人口学特征、知识、行为以及梅毒与HIV感染率。结果干预组和对照组分别有423人和528人,平均年龄分别为（26.8±8.0）岁和（26.3±6.2）岁。干预组艾滋病防治知识知晓率高于对照组（χ2=28.9,P〈0.001）,最近6个月与男性发生无保护性性行为的比例低于对照组（χ2=14.7,P〈0.001）,HIV感染率明显低于对照组（χ2=15.0,P〈0.001）。结论艾滋病检测可以有效提高MSM人群安全套使用率,降低感染艾滋病的风险,应在MSM人群中倡导主动咨询检测,扩大咨询检测覆盖面。