AIDS High Risk Behavioral Surveillance And Comparison Of Men Who Have Sex With Men (MSM) With Different Self-Identification

Background and Objective: China has gone into a period in which AIDS prevalence is increasing at a high speed.The status of epidemic is becoming severe day by day.MSM mainly include gay,male bisexual,male transsexual and male heterosexual,who are one of three populations with AIDS high risk behavior confirmed in international researches.Another two populations are female sex workers and injecting drug users.HIV prevalence in gay community of China has a direct influence on the epidemic status of the whole society. At present,there are a lot of blanks in the relevant study on MSM in China.In order to adjust and improve the strategy of AIDS/STI prevention and control,establish a effective alert system against early AIDS prevalence and make preventive measures,it is necessary to make a thorough behavioral researches on MSM.Behavioral comparison of MSM with different self-identification is one aspect of researches.Method: Target sampling is adopted to obtain a sample. Behavioral surveillance and comparison of MSM with different self-identification is made by analyzing the result of anonymous questionnaire survey on 1026 MSM.Results: Among 4 groups of MSM with different self-identification,the total female sex partners of heterosexuals are more than homo/transsexuals'evidently(p<0.01)and the female sex pa- rtners in the last year of heterosexuals are more than homosexuals' evidently (p<0.01). The male sex partners in the last year of homo/bisexuals are more than transsexuals' (p<0.05).The total female sex partners,present regular male sex partners and female sex part- ners in the last year of bisexuals are all more than homosexuals' evidently(p<0.01).In the last anal intercourse,the rate of condom use of bisexuals is the highest in 4 groups and the rate of heterosexuals is the lowest(p < 0.05). The rate of condom use of homo/bisexuals in the last anal intercourse is both higher than that in the last oral intercourse evidently(p<0.01). The rate of condom use of trans/ heterosexuals in the last anal intercourse is both higher than that in the last oral intercourse but this difference is not statistically signify- cant(p >0.05). The rate of condom use of bisexuals when having sex with women in the last year is lower than thatwith men evidently (p< 0.001 ).The age of homosexuals when having first sex with women is bigger than bi/ heterosexuals(p < 0.05, p < 0.01).In order to avoid HIV infection,the proportion of homosexuals who have taken some preventive measures is the smallest in 4 groups and that of bisexuals is the biggest(p < 0.05). The proportion of transsexuals who have ever had unprotected passive anal intercourse and had in the last year is the biggest in 4 groups,but that of heterosexuals is the smallest (p < 0.01). The proportion of homosexuals who have ever had unprotected passive anal inter- course and had in the last year is higher than that of bisexuals(p < 0.01). The proportion of transsexuals who have taken part in sex work is the biggest in 4 groups and the proportion of heterosexuals who have taken part in sex work in the last year is the biggest (p < 0.01). The proportion of bisexuals who have taken part in sex work or done in the last year is bigger than that of homosexuals(p < 0.01). The proportion of homo/bisexuals who have ever paid for male-male sex is all higher than that of having taken part in sex work(p<0.01, p<0.05). The proportion of homo/bisexuals who have paid for male-male sex in the last year is also higher than that of having taken part in sex work in the last year,but the former difference is statistically significant and the latter difference is not statistically sig- nificant(p<0.01, p > 0.05). The proportion of trans/ heterosexuals who have paid for male-male sex is lower than that of having taken part in sex work,but the former diffe- rence is not statistically significant and the latter difference is statistically significant (exactP=0.344, exactP=0.05). The proportion of trans/ heterosexuals who have paid for male-male sex in the last year is also lower than that of...