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1.
HIV is spreading among Chinese MSM and may possibly lead to infection of female partners. Pressure to marry may drive a greater proportion of Chinese MSM to have female partners than MSM elsewhere in the world. Measurement of the size of the potential risk to female partners of Chinese MSM is inconsistent in the literature. From samples of MSM in two Chinese cities, we documented numbers of sexual partners and sexual activity with those partners. About 500 MSM were sampled in each city. 11.0 and 12.6 % of men reported having any female partners in the past 6 months in Chongqing and Beijing, respectively. Men also reported that only 7.3 and 6.7 % of their entire partnerships were with women in Chongqing and Beijing, respectively. Defining transmission risk accounting for receptive anal sex among men and condom non-use with both male and female partners, 3.4 % of MSM in both Chongqing and Beijing would have the potential to transmit HIV to female partners. Only 9 (1.8 %) men in Chongqing and 2 (0.4 %) in Beijing were HIV-positive and also had unprotected intercourse with females. The majority of HIV transmission risk among MSM in China is not from MSM to females.  相似文献   

2.
Using surveillance data on men who have sex with men (MSM) from six Indonesian cities, this article reports prevalence of sexual risk taking, HIV and other sexually transmitted infections. Factors associated with HIV, other STIs and consistent condom use were assessed. Behavioral data were collected from 1,450 MSM, among whom 749 were tested for HIV and syphilis and 738 for gonorrhea and Chlamydia. Associations were assessed using multivariate logistic regression. Over 80% of MSM knew HIV transmission routes, 65% of MSM had multiple male sexual partners, 27% unprotected anal sex with multiple male partners, and 27% sex with a female in the prior month. Consistent condom use ranged from 30 to 40% with male partners and 20 to 30% with female partners, depending upon partner type. HIV prevalence averaged 5.2%, but was 8.0% in Jakarta. Prevalence of rectal gonorrhea or Chlamydia was 32%. Multivariate analyses revealed recent methamphetamine use and current rectal gonorrheal or chlamydial infection to be associated with HIV infection. The data confirm diverse sexual networks and substantial sexual risk-taking, despite relatively high levels of education and HIV-related knowledge. In addition to promoting partner reduction and more consistent condom and lubricant use, prevention efforts must also address substance abuse.  相似文献   

3.
目的本文描述了中国大陆男同性性接触者(MSM)与HIV/AIDS/STD相关的高危行为、认识和某些影响因素.方法通过自我填写问卷和当面访谈填写问卷两种形式,对426位男性进行了调查.结果本组主要生活在大中城市、接受过较好教育、较为年轻的MSM,平均约18岁开始与同性性交.4/5以上有口-生殖器性交,半数以上有肛门性交行为.累计性伴中位数9人.2/5以上在近一年内有偶遇性性伴.约半数人在调查时有固定性伴,但仅少数人与性伴保持闭合性性关系.约1/3已婚,近半数人与女性性交过.1/4曾患性传播疾病,近一年患病率为6.81%.仅1/10进行过HIV抗体检测,1人阳性.约1/3使用过安全套,通常在少数情况下使用,只有2人坚持使用.不用安全套的原因主要是认为安全套能降低快感、自己无感染HIV的可能和性伴健康,虽然他们已普遍具有关于HIV传播的一般知识.结论中国大陆部分MSM在性方面相当活跃,存在HIV在MSM中高水平流行的可能性.HIV在中国MSM中的流行速度高于90年代初中期在西方国家MSM中的流行速度,而且流行还会直接蔓延到妇女人群.由于社会文化等因素的阻力,对中国MSM的AIDS干预面临重大困难.  相似文献   

4.
Li X  Lu H  Ma X  Sun Y  He X  Li C  Raymond HF  McFarland W  Pan SW  Shao Y  Vermund SH  Xiao Y  Ruan Y  Jia Y 《AIDS and behavior》2012,16(3):499-507
This study assessed the correlates of recent HIV testing and HIV/AIDS-related stigmatizing and discriminatory attitudes among men who have sex with men (MSM) in Beijing, China. A cross-sectional study probed demographics, sexual and drug use behaviors, HIV testing, and prevention services. Of 500 participants, 39.3% recently received a test for HIV. Recent testing was independently associated with expressing lower levels of HIV/AIDS-related stigmatizing and discriminatory attitudes, more male sex partners, no female sexual partners and knowing HIV status of their last male partner. Expressing lower levels of HIV/AIDS-related stigmatizing and discriminatory attitudes was independently associated with recent testing, younger age, and knowing HIV status of their last male partner. This study revealed that HIV/AIDS-related stigmatizing and discriminatory attitudes were common and inversely associated with recent HIV testing. Low levels of testing highlighted the urgent needs to reduce HIV/AIDS-related stigma and discrimination and expand HIV testing among MSM in Beijing.  相似文献   

5.
This study assessed the prevalence of exchanging sex for money or drugs among men who have sex with men (MSM) in the 2011 US National HIV Behavioral Surveillance system. Prevalence of HIV, being HIV-positive but unaware (HIV-positive–unaware), risk behaviors and use of services were compared between MSM who did and did not receive money or drugs from one or more casual male partners in exchange for oral or anal sex in the past 12 months. Among 8411 MSM, 7.0 % exchanged sex. MSM who exchanged sex were more likely to be non-Hispanic black, live in poverty, have injected drugs, have multiple condomless anal sex partners, be HIV-positive and be HIV-positive–unaware. In multivariable analysis, exchange sex was associated with being HIV-positive–unaware (aPR 1.34, 95 % CI 1.05–1.69) after adjusting for race/ethnicity, age, education, poverty, and injecting drugs. MSM who exchange sex represent an important group to reach with HIV prevention, testing, and care services as they were more likely to report behavioral risk factors that put them at risk of HIV.  相似文献   

6.
Five hundred men who have sex with men (MSM), recruited through respondent driven sampling in Buenos Aires, Argentina, were interviewed in order to assess knowledge and beliefs about HIV infection. The mean proportion of HIV correct knowledge answers was 62 %; however participants whose sexual partners in the prior year included women (MSM&W) had lower frequencies of correct answers than participants with no women partners. Men with previous HIV testing experience and those who were HIV positive had higher HIV knowledge. In relation to HIV beliefs, less than half of participants responded correctly to each of the scenarios presented. Accurate answers for all items were more likely among those who only have sex with men. Men have basic HIV knowledge but also many misconceptions about transmission and prevention. Furthermore, MSM&W have less information than those who are exclusively MSM, probably related to the fact that information campaigns specifically targeted gay identified men.  相似文献   

7.
The aims of this study were to understand strategies and consistency of strategy used by HIV-negative and HIV-positive men who have sex with men (MSM) to ascertain the HIV status of their male sexual partners and their associations with unprotected anal intercourse (UAI) and serodiscordant UAI (SDUAI) in the past 3 months. Participants (n = 640) completed an online survey in December 2007. The most commonly reported strategy was checking online profiles (85%), followed by talking before sex (82%), talking after sex (42%), and guessing (29%). Adjusting for demographic and behavioral factors, guessing the HIV status of sex partners was associated with greater UAI and SDUAI partners, as was using an inconsistent strategy. Ascertaining HIV status before having sex was associated with fewer SDUAI partners. Prevention should target MSM who guess the HIV status of their sex partners and emphasize explicit safer sex agreements.  相似文献   

8.
Men who have sex with men (MSM) account for approximately half of Canada’s new HIV infections. Pre-exposure prophylaxis (PrEP), a recently established and effective HIV prevention tool for MSM is currently not approved nor publicly funded. We recruited MSM via respondent-driven sampling to complete a self-administered computer-based interview. Stratified by HIV status, multivariable logistic regression identified factors associated with PrEP awareness. Of 673 participants, 102/500 (20.9 %) HIV-negative and 63/173 (26.5 %) HIV-positive men were aware of PrEP, but none had used it. One third of PrEP-aware MSM spoke about it with friends or sex partners. Self-declared knowledge was limited. Factors associated with PrEP awareness varied by HIV status, but included greater HAART optimism for HIV-negative MSM. Among HIV-negative MSM, being PrEP unaware was associated with younger age, not always having condoms, and preferring receptive versus insertive anal sex. Future longitudinal research should identify early adopters of PrEP and its associated impacts.  相似文献   

9.
To assess the potential for HIV acquisition among men who have sex with men (MSM) in Guangzhou, China, we conducted a cross-sectional, anonymous, face-to-face survey of MSM in the metropolitan area of Guangzhou, China. As a pilot recruitment for a cohort study, participants were recruited by convenience sampling through newspaper and television advertising, website information, and respondent referral. Blood samples were tested for HIV, hepatitis B (HBV), hepatitis C (HCV), and syphilis. Client-centered HIV and STD counseling was provided.A total of 201 MSM were interviewed and 200 blood samples were tested. The prevalence of HIV antibody was 0% (97.5% CI 0–1.8%); 17.5% of MSM were HBV surface antigen positive; 1.0% had HCV antibodies; 10.5% had antibodies to syphilis. Syphilis seropositivity was associated with sex with a foreign MSM in the last six months and 10.4% reported sex with a foreign MSM overall. The majority (54.7%) reported unprotected anal sex with other men. Nearly one-third (31.8%) had regular female partners; 25.9% were currently married to a woman; 6% had casual female partners; 4.5% had sex with a female sex worker; 4.5% had sex with a male sex worker; and 12.9% had unprotected vaginal sex and unprotected anal sex with a man in the past six months. Only one MSM reported injection drug use (0.5%). The currently low prevalence of HIV but high level of unprotected anal sex, high prevalence of syphilis infection, and sexual networks that include foreign MSM point to a transient window for HIV prevention among MSM in Guangzhou. We recognize challenges to recruiting a representative sample of MSM and retaining them in longitudinal cohort studies.  相似文献   

10.
China’s HIV epidemic may be shifting towards predominantly sexual transmission and emerging data point to potential increases in HIV prevalence among men who have sex with men (MSM). There is particular need to assess the extent of risk behavior among MSM outside of China’s most cosmopolitan cities. We conducted a respondent-driven sampling survey (N = 428) to measure HIV seroprevalence and risk behavior among MSM in Jinan, China, the provincial capital of Shandong. HIV prevalence was 0.5% (95% confidence interval [CI] 0.1–1.0). Unprotected anal intercourse (UAI) in the last 6 months (reported by 61.4%) was associated with buying or selling sex to a man in the last 6 months, syphilis infection, multiple partners in the last month, low HIV knowledge and migrant status. No participant had previously tested for HIV. Risk for HIV transmission is widespread among MSM throughout China; basic prevention programs are urgently needed.  相似文献   

11.
HIV is rapidly spreading among men who have sex with men (MSM) in China. We estimate and compare rates of condom use among MSM in different regions of China through a systematic literature review. Meta-analyses were conducted over a final set of 66 studies to estimate national and regional condom use rates among MSM with different types of male sex partners. Country-wide, there has been a modest increase in reported condom use at last sex among MSM, from 56.1% (95% CI: 53.4–58.7%) in 2003–2005 to 61.6% (95% CI: 58.4–64.8%) in 2006–2008. Consistent condom use has also increased, from 32.5% (95% CI: 28.6–36.7%) in 2003–2005 to 36.3% (95% CI: 33.7–38.9%) in 2006–2008. Condom use was greatest and increasing among commercial sex partners, from 49.8 to 75.2% at last anal sex. Further condom promotion is still required to reduce the incidence of HIV infection among MSM in China.  相似文献   

12.
To learn more about risk behaviors among men who have sex with men (MSM) in Vietnam and their prevalence of HIV, we conducted a study among MSM in Ho Chi Minh City (HCMC) to determine HIV-1 prevalence and behaviors associated with infection. This consisted of formative (35 MSM) and cross-sectional (600 MSM) studies at 72 sites, including 75 transvestites, 55 bisexuals, 10 sex workers, and 460 other MSM. Only 5.3% cohabited with a wife/girlfriend, but 30% reported ever having sex with a female. Prevalence of HIV was 8%, ranging from 33% in sex workers to 7% among transvestites and other MSM. Injecting drugs, selling sex, being 20–40 years old, having less than 6 years of education, and having more than five male anal sex partners in the past month were associated with being HIV-infected. MSM are an HIV bridge group, and should be included in sentinel surveillance. Targeted interventions should be implemented.  相似文献   

13.
Nearly 70 % of HIV+ men who have sex with men (MSM) are estimated to have contracted HIV from a main partner. We examine whether condom use varies by relationship configuration, including open relationships with and without cheating. 656 MSM in committed relationships were recruited through a sexually explicit social networking website. Of the 55 % of MSM who had anal sex with a non-main partner in the past 90 days, two-thirds did not use a condom. Adjusting for covariates, MSM in relationships characterized as open with cheating versus monogamous were more likely to have unprotected anal sex with both main and non-main partners. MSM who perceived that their partner played around or cheated were more likely to have unprotected anal sex with a non-main partner. Prevention messages should attempt to reduce cheating and increase personal responsibility for protecting partners from HIV. Messages should be tailored to reflect open and monogamous relationships.  相似文献   

14.
HIV serostatus disclosure before sex can facilitate serosorting, condom use and potentially decrease the risk of HIV acquisition. However, few studies have evaluated HIV serostatus disclosure from partners before sex. We examined the rate and correlates of receiving HIV serostatus disclosure from regular and casual male partners before sex among an online sample of men who have sex with men (MSM) in China. An online cross-sectional study was conducted among MSM in eight Chinese cities in July 2016. Participants completed questions covering sociodemographic information, sexual behaviors, HIV testing (including HIV self-testing) history, self-reported HIV status, and post-test violence. In addition, participants were asked whether they received HIV serostatus disclosure from their most recent partners before sex. Overall, 2105 men completed the survey. Among them, 85.9% were never married, and 35.4% had high school or less education. A minority (20.6%, 346/1678; 17.8%, 287/1608) of men received HIV serostatus disclosure from their most recent regular and casual male partners, respectively. Multivariate analysis indicated that participants who ever self-tested for HIV were more likely to have received HIV status disclosure from regular [adjusted OR (aOR) = 1.92, 95% CI 1.50–2.44] and casual (aOR = 2.34, 95% CI 1.80–3.04) male partners compared to never self-tested participants. Compared to participants who had not received HIV status disclosure from regular partners, participants who received disclosure from regular male partners had higher likelihood in experiencing post-test violence (aOR = 5.18, 95% CI 1.53–17.58). Similar results were also found for receiving HIV serostatus disclosure from casual partners. This study showed that HIV serostatus disclosure from partners was uncommon among Chinese MSM. Interventions and further implementation research to facilitate safe disclosure are urgently needed for MSM.  相似文献   

15.
We examined the hypothesis that black and Latino men who have sex with men (MSM) who have supportive social relationships with other people are less likely to have unrecognized HIV infection compared with MSM of color who report lower levels of social support. We interviewed 1286 black and Latino MSM without known HIV infection in three metropolitan areas who were recruited using respondent driven sampling. Participants completed a computer-administered questionnaire and were tested for HIV. Unrecognized HIV infection was found in 118 men (9.2%). MSM who scored higher on the supportive relationship index had significantly lower odds of testing HIV-positive in the study. The mediation analysis identified two possible behavioral pathways that may partially explain this association: men who had strong supportive relationships were more likely to have had a test for HIV infection in the past 2 years and less likely to have recently engaged in high-risk sexual behavior. The findings illuminate the protective role of social relationships among MSM of color in our sample.  相似文献   

16.
In China, the HIV prevalence among men who have sex with men (MSM) has been increasing sharply. A total of 195 Hong Kong MSM having had sex with men in Shenzhen, a mainland China city separated from Hong Kong by a border, were recruited from some randomly selected gay venues in Shenzhen. Participants were face-to-face and anonymously interviewed. The results showed that in the last six months, respectively 62.1, 84.6, and 31.3 % of the participants from Hong Kong had had sex with commercial sex partners (CSP), non-regular partners (NRP) and regular partners (RP) in Shenzhen. The prevalence of unprotected anal intercourse (UAI) with these three types of sex partners was respectively 29.8, 27.9, and 78.7 %. Factors associated with UAI with any MSM in Shenzhen in the last six months included perceived chances of contracting HIV, perceived non-availability of condoms, giving money/gifts to Shenzhen MSM sex partners, and perception that MSM partners in Shenzhen would not always insist on condom use (multivariate OR = 2.9–13.90, p < 0.05), whilst factors of inverse associations included university education, having had sex with NRP but not with CSP and RP in Shenzhen and self-efficacy of insisting on condom use (multivariate OR = 0.04–0.22, p < 0.05). In sum, the prevalence of having multiple types of male sex partners and UAI was high. This was especially true when anal sex with RP was involved. Cross-border HIV prevention is greatly warranted. It should ensure condom availability and modify perceptions toward UAI.  相似文献   

17.
Many men who have sex with men (MSM) do not use condoms with their main partners, especially if both parties are of the same HIV status. However, significant proportions of MSM have never tested or recently tested and are unaware of their main partners’ HIV status. A cross-sectional survey was conducted among 524 MSM in Jiangsu, China in 2013–2014. Time-location sampling and online convenience sampling were used to recruit participants. We compared awareness of HIV status and recent HIV testing between participants who had main partners versus those who did not, and identified factors associated with recent HIV testing among men in main partnerships. Participants in main partnerships were significantly more likely to report recent HIV testing and being HIV-negative instead of HIV-unknown compared to participants in casual partnerships only. Overall, 74.5 % of participants were aware of their main partners’ HIV status. Among participants in main partnerships, those who had 2–5 male anal sex partners in the past 6 months and those who reported that their partners were HIV-negative had 2.36 (95 % CI 1.12, 4.97) and 4.20 (95 % CI 2.03, 8.70) fold greater odds of being tested in the past year compared to those who had main partners only and those whose partners were HIV-positive/unknown, respectively. Chinese MSM in main partnerships might be practicing serosorting and may be at lower risk for HIV infection due to increased awareness of main partners’ HIV status and higher uptake of recent testing.  相似文献   

18.
Croatia has a low-level HIV epidemic and, as in a number of other Central and Southeastern European countries, sex between men accounts for most HIV infections. This study examines sexual behavior and the correlates of condom use in a snowball sample of 342 HIV non-infected men who have sex with men (MSM) in Zagreb. The median age of participants in the sample was 27 years. The majority of participants (81%) reported using condom at last anal sex with casual partner and 56% claimed to have used condoms consistently at anal sex with casual partners in the last 12 months. HIV risk self-assessment and number of sexual partners were significantly correlated with condom use at last anal sex with casual partner. Self-assessed HIV-risk and heterosexual activity were found associated with consistent condom use at anal sex with casual partners. To sustain a low-level HIV epidemic, targeted intervention among young MSM is needed in Croatia.  相似文献   

19.
Bisexual behaviors may increase transmission pathways of HIV and sexually transmitted infections (STIs) from a higher prevalence group to lower prevalence groups in El Salvador. In 2008, men who have sex with men (MSM) were recruited in San Salvador and San Miguel using respondent driven sampling. Participants were interviewed and tested for HIV and STIs. Sixteen seeds and 797 MSM participated; 34.9% in San Salvador and 58.8% in San Miguel reported bisexual behavior. Bisexual behavior was associated with drug use (adjusted odds ratio (AOR) = 2.57, 95% CI: 1.30–5.06) and insertive anal sex (AOR = 5.45, 95% CI: 3.01–9.87), and inversely associated with having a stable male partner (AOR = 0.47, 95% CI: 0.26–0.84) and disclosing MSM behavior to family (AOR = 0.41, 95% CI: 0.22–0.75). Bisexual behavior was associated with risk behaviors with male and female partners that may be associated with HIV and STI transmission. Bisexual men displayed a distinct identity calling for tailored interventions.  相似文献   

20.
Heterosexual transmission of HIV is a growing problem for women, but many women do not know how their partners acquired HIV. We described a group of HIV-infected men and women, and focused on: (1) sexual identity and bisexual behaviour in men, and (2) the proportion of women who acknowledged having a bisexual male partner. This study examined HIV-infected persons who participated in a cross-sectional interview project from January 1995 through July 2000; 5,156 men who have sex with men (MSM), and 3,139 women. The proportion of MSM who reported having sex with women (MSM/MSW) varied by race: 34% of black MSM, 26% of Hispanic MSM, and 13% of white MSM. While 14% of white women acknowledged having a bisexual partner, only 6% of black and 6% of Hispanic women reported having a bisexual partner. Most behaviourally bisexual men identified as either bisexual (59%) or homosexual (26%). Among MSM/MSW, 30% had more female partners than male partners, while only 10% had more male partners than female partners. These data suggest that bisexual activity is relatively common among black and Hispanic HIV-infected MSM, few identify as heterosexual, and their female partners may not know of their bisexual activity.  相似文献   

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