Drug Users ; Female ; HIV Infections ; transmission ; Humans ; Risk-Taking ; Unsafe Sex

OBJECTIVETo monitor the current HIV prevalence, related risk behaviors and factors for HIV infection among the elderly male clients of the commercial female sex-workers (CFSW)in Guangxi.

METHODSFace to face interview on male clients aged ≥40 years old was carried out in April to July, 2012. Information on demography, awareness of HIV prevention, related risk behaviors, history on HIV testing etc. were collected, with 3-5 ml full blood collected for testing on HIV. Data was analyzed by SPSS 18.0 software.

RESULTS4260 clients were surveyed at 14 surveillance sites in which 82.1% had received secondary or lower education, 72.0% experienced commercial sex in places with low-class sex trade. HIV awareness rate of clients was 74.2% in which the rate of clients who were HIV positive was 65.8%. Among all the clients, 73 were detected as HIV positive, with the HIV positive rate as 1.40% . Samples from voluntary counseling and testing sites showed higher risk to HIV infection than from other sources (OR = 23.672, 95%CI:4.984-112.434). Samples from middle class population showed lower risk to HIV infection than those at low class (OR = 0.410, 95%CI:0.190-0.885). Among those who were syphilis negative (OR = 0.255, 95%CI: 0.132-0.491) or hepatitis C virus (HCV)negative (OR = 0.154, 95% CI:0.059-0.401), the risk of getting HIV infected seemed to be low. Rate on condom use was low for clients among all of the sex-related behaviors regardless of the marriage status. In those lower-class sex trade places, lower rate on the condom use was seen. Rate for previous HIV testing for clients was only 4.6% . Among 41 clients who had received CD4 testing, 80.5% of them showed CD4 under 350 cell/µl, 61.0% were under 200 cell/µl.

CONCLUSIONThe HIV positive rate for elderly male clients of the CFSWs was high in Guangxi. Unprotective sexual contact with low class sex workers was the most important risk factor for HIV infection.

Acquired Immunodeficiency Syndrome ; epidemiology ; etiology ; Aged ; China ; epidemiology ; Humans ; Male ; Middle Aged ; Risk Factors ; Unsafe Sex

Adult ; Homosexuality, Male ; psychology ; Humans ; Male ; Students ; psychology ; Surveys and Questionnaires ; Unsafe Sex

Acquired Immunodeficiency Syndrome ; transmission ; Homosexuality, Male ; psychology ; Humans ; Internet ; Male ; Sexually Transmitted Diseases ; transmission ; Unsafe Sex ; prevention & control

OBJECTIVETo assess the change of sexual behaviors before and after HIV was recently identified among men who have sex with men (MSM).

METHODSA retrospective study was conducted on recently identified HIV-infected MSM in Chengdu and Tianjin. A face-to-face questionnaire interview was administrated to collect sexual behaviors within six months, before and after HIV was diagnosed. Differences in sexual behavior before and after the diagnosis were assessed, using the McNemar χ(2) test. Logistic regression analysis was conducted to identify predictors for sexually risk behaviors.

RESULTSOf 129 HIV-infected MSM under survey, the average age was 31.8 years and the main venue in seeking male sex partners was through Internet. The proportions of MSM with unprotected anal intercourse (UAI) decreased from 70.5% before diagnosis to 16.3% after diagnosis and the percentage of having more than 1 partner decreased from 66.7% before diagnosis to 33.3% after diagnosis. After the diagnosis was made, there appeared a significant decrease in the percentage of persons who had one main partner from 72.9% to 55.0% and having casual partners declined from 62.8% to 31.0% . Data from multiple logistic regression analysis revealed that risk factors as UAI before diagnosis, more than 1 partner after diagnosis and having one main partner, were all significantly associated with UAI after diagnosis. After the diagnosis was made for UAI, risk factors for 'having more than 1 partner' after diagnosis, would include:using Internet to seek for sexual partners, after diagnosis, having one main partner but not disclosing to him.

CONCLUSIONAfter the diagnosis was made, most HIV-infected MSM would reduce their high risk sexual behaviors but some continued to practice UAI.

Adult ; HIV Infections ; epidemiology ; Homosexuality, Male ; statistics & numerical data ; Humans ; Logistic Models ; Male ; Retrospective Studies ; Unsafe Sex ; statistics & numerical data

OBJECTIVETo examine HIV prevalence and its associated factors among men who have sex with men (MSM) and provide the evidence for the intervention program among MSM.

METHODSA face-to-face questionnaire interview was conducted among MSM recruited by snowball sampling method in Yuzhong, Jiulongpo and Shapingba district of Chongqing from July to September, 2007. Totally, 1044 MSM were recruited. Associated factors with HIV prevalence were analyzed using forward stepwise logistic regression that HIV status was the dependent variable and demographics, AIDS awareness, sexual behaviors and the status of the intervention were independent variables.

RESULTSA total of 1044 MSM were surveyed. The rate of AIDS awareness was 89.5% among MSM. The rate of unprotected anal sex during the past 6 months was 63.8%. The prevalence of HIV and syphilis was 8.5% (89/1044) and 12.5% (131/1044) respectively. The multivariate analysis identified that the older MSM (OR = 1.69, 95% CI: 1.13 - 2.52), junior school education (OR = 1.89, 95% CI: 1.17 - 3.05), younger than 18 years old of the first sex (OR = 3.11, 95% CI: 1.20 - 8.02), more than 10 sexual partners (OR = 2.24, 95% CI: 1.24 - 4.02), the history of having sex with women (OR = 2.40, 95% CI: 1.64 - 3.51) and syphilis infection (OR = 4.52, 95% CI: 2.77 - 7.38) were independent risk factors associated with HIV infection.

CONCLUSIONThe rate of unprotected anal sex was high, so were the prevalence of HIV and syphilis among MSM. It should be urgent to conduct the intervention to stop AIDS rapid transmission among MSM.

China ; epidemiology ; HIV Infections ; epidemiology ; Homosexuality, Male ; Humans ; Male ; Prevalence ; Risk Factors ; Risk-Taking ; Surveys and Questionnaires ; Syphilis ; epidemiology ; Unsafe Sex

OBJECTIVETo study the HIV infection risk perception, sexual behavior and condom use among college students who had sexual experiences.

METHODSUsing data generated from a survey on AIDS related knowledge and risk perception and sexual behavior (conducted in a coast city of Zhejiang province in 2003), with a questionnaire involving self-reporting history of sexual experience. Software SPSS 12.0 for windows was used for statistical analysis.

RESULTS47.0 percent of the 2785 students having had sexual experience did not feel that sexual experience was related to HIV risk while 51.3 percent them considered their sexual behavior was at much low risk. 80.5 percent of the students with sexual experience had ever used condoms, but only 16.0 percent used it consistently. There was no association between risk perception and condom use, but there was association between risk perception and intention for condom use.

CONCLUSIONThe college students having had sexual experience had low level of risk perception on HIV infection and had a high rate of ever condom use but low in consistent use. Extensive and detailed prevention intervention was needed to improve the safe sexual behaviors.

Attitude to Health ; China ; Condoms ; utilization ; HIV Infections ; prevention & control ; transmission ; Humans ; Risk ; Sexual Behavior ; Students ; psychology ; Universities ; Unsafe Sex

Acquired Immunodeficiency Syndrome ; psychology ; Adult ; Educational Status ; Homosexuality, Male ; Humans ; Male ; Risk-Taking ; Unsafe Sex ; Young Adult

OBJECTIVETo understand the characteristics of recreational drug users' behaviors and social network, as well as their potential impact to the transmission of sexual transmitted infections (STI).

METHODSQualitative interview was used to collect information on rough estimation of population size and behavior change before and after recreational drug use. A total of 120 participants were recruited by convenient sampling from April to October, 2013 in a community of Qingdao city. Blood specimens were taken for HIV/syphilis serological testing and social network analysis was performed to understand the characteristics of their behavior and social network.

RESULTSAll participants used methamphetamine and 103 of them showed social connection. The prevalence of syphilis and HIV were 24.2% (29/120) and 2.5% (3/120) respectively. The estimated size of recreational drug users was big with a wide diversity of occupations and age range, and males were more frequent than females. Drug use may affect condom use and frequent drug users showed symptom of psychosis and neuro-toxicities. The size of social network was 2.45 ± 1.63 in the past 6 months, which indicated an increasing trend of the sexual partner number and risky behaviors.

CONCLUSIONRecreational drug use could increase the size of social network among sex partners, the frequency of risky sexual behaviors and syphilis prevalence, which indicate a high risk of HIV/STI among this population as well as a huge burden of disease prevention and control in the future.

Adolescent ; Drug Users ; Female ; HIV Infections ; Humans ; Male ; Methamphetamine ; Prevalence ; Risk-Taking ; Sexual Partners ; Social Support ; Syphilis ; Unsafe Sex

Objective: To identify related factors associated with unprotected anal intercourse (UAI) among HIV-positive men who have sex with men (MSM) in the context of knowing their HIV infection status. Methods: HIV positive MSM who known that they had been infected with HIV for more than 6 months and accepted follow up services were recruited by convenience sampling method in Chengdu 2015. Semi-structured questionnaire was used to collect their information, such as demographic characteristics, antiviral therapy and sexual behavior characteristics etc. Logistic regression model was used for univariate and multivariate analyses. Results: A total of 330 HIV- positive MSM were recruited, 201 eligible MSM were interviewed. The prevalence of UAI in recent six months was 18.41% (37/201). The results of multivariate logistic regression analysis revealed that the number of anal intercourse with male ≥3 in last month (OR=6.22, 95%CI: 1.88-20.56), low education level (OR=7.29, 95%CI: 1.36-39.16), married, divorced or widowed status (OR=4.65, 95%CI: 1.13-19.17), homosexual cohabitation (OR=3.32, 95%CI: 1.01-10.95) were the risk factors related with UAI among the HIV-positive MSM. Conclusion: Frequent homosexual anal intercourse, low education level, married, divorced or widowed status and homosexual cohabitation might be the risk factors related with UAI in HIV-positive MSM in Chengdu.
HIV ; HIV Infections/transmission* ; Homosexuality, Male ; Humans ; Male ; Risk-Taking ; Sexual Behavior ; Sexual Partners ; Sexual and Gender Minorities ; Unsafe Sex