Factors associated with characteristics of heterosexual intercourse among men who have sex with men

Objective To study factors associated with characteristics of heterosexual intercourse among men who have sex with men(MSM).Methods Between July 2005 and November 2005,MSM were investigated to collect their socio-demographics and high risk sexual behaviors.Results Of the 526 MSM,10.6%(56/526)had sex with females in the past 6 months.Sex with regular and casual female sex partner(s)in the past 6 months were reported as 8.2%(43/526)and 4.4%(23/526),respectively.Of the MSM 32.6%(14/43)and 66.7%(2/3) had consistent use of condom during their vaginal and anal sex with spouses/regular and casual female sex partner(s)in the past 6 months,respectively.However,34.8%(8/23)and 42.9%(3/7)of MSM had consistent use of condom during their vaginal and anal sex with regular and casual female sex partner(s) in the past 6 months,respectively.Multiple logistic regression demonstrated that those factors such as marriage or cohabiting with female partners(OR,9.6;95%CI,3.8～24.4),initial sex with females(OR,9.7;95%CI,4.7～20.0),having regular male sex partners in the past 6 months(OR,0.4;95%CI,0.2～0.8),having sex with commercial sex partner(s) in the past 6 months(OR,5.0;95%CI,2.0～12.3)and drinking everyday in the past 6 months(OR,3.8;95%CI,1.8～8.2)had significant statistic significance. Conclusion MSM serve as a bridge of HIV transmission,and interventions to MSM should be strengthened to control HIV transmission from MSM to the female population.