Characteristic of sexual behavior and their associated factors among male and female partners of men who have sex with men / 中华疾病控制杂志

Objective To understand the characteristic of sexual behavior and their associated factors among male and female partners of men who have sex with men in Anhui province. Methods Cross-sectional studies were conducted among MSM in Hefei, Wuhu and Liuan in Anhui province. MSM were recruited through “snowball sampling” and “internet-based recruiting”, and eligible participant received an anonymous survey. Multivariate Logistic regression analysis model was used to identify risk factors associated with having sex with women in the last 6 months among MSM. Results Of the 1 200 MSM interviewed, 78.3% had anal sex with men, and 20.9% had vaginal intercourse with women, and 16.5% had sexual intercourse with both men and women in the past 6 months. Less MSM reported using condom every time with women (29.9%) in the past 6 months than with men (53.0%), and less reported using condom with women (52.2%) during the last sexual intercourse than with men(79.6%) (all P<0.05). The results of mutivariate Logistic regression analysis showed that MSM who were married(including currently married/cohabitating/divorced/widowed), lived more than 2 years in the surveyed city, and had commercial sex with men were more likely to have sex with women. Conclusions There was a high proportion of bisexual behavior and low rate of condom use among MSM. It should strengthen the sexual health education, risk perception education and behavioral intervention among MSM.

Risk factors which were associated with heroin use during the methadone maintenancetreatment among 1301 patients in 9 cities of China / 中华流行病学杂志

Objective To determine the proportion of heroin use among patients who were involved in community-based methadone maintenance treatment (MMT) program and to identify the risk factors associated with heroin use. Methods This study was conducted in 9 MMT clinics within 3 provinces. Thirteen hundred and one patients who met the study criteria were selected from each of the five groups with different dosages of methadone users. An administrative questionnaire was applied to explore the demographics,drug abuse-related behaviors and MMT services received by the clients,etc. The prevalence of depression and anxiety among the clients were also collected by SAS and SDS. Urine samples were collected as a biological marker to indicate if heroin had been used. Results Of the 1301 patients,76.2% were males. The mean age was (34.6±6.5) years while 71.7% had an education level of primary school or below. The average daily dosage of methadone was (48.1±29.4) mg and self-satisfied evaluation score on treatment was 8.6. On average,27.7% urine samples showed positive opiate evidence. Marital status,employment status,treatment retention,self-satisfied evaluation score on dosage and dropout history were found to be significantly associatedwith heroin use,while gender,education level and dosage had no significant association with heroin use. It seemed that risk factors that associated with heroin use were different from areas to areas. Conclusion High quality MMT clinic services,high self-satisfied score,longer treatment retention and low dropout rate seemed to have the effects of reducing the risk of ongoing heroin abuse under the methadone maintenance treatment program.