Analysis of potential categories of sexual behaviors among male students who have sex with men and the status of pre-ex-posure prophylaxis use
Objective To analyze the use of pre-exposure prophylaxis(PrEP)among male students who had sex with men(MSM)with different sexual behavior patterns using potential categories,so as to provide evidence for determining the use patterns of PrEP consistent with MSM.Methods A questionnaire survey was conducted by proportional sampling method on MSM in 31 provincial administrative regions in mainland China from 20 October to 30 December 2021,a total of 1 040 students were selected for the study.Latent variable analyses were conducted on a total of seven sexual behavioral characteristics,including knowledge of sexual partner HIV infection,frequency of condom use,number of sexual partners,engaging in group sex,provision of commercial sex,use of sex aids,and history of sexually transmitted infections(STIs)in the past year.And demographic characteristics were analyzed by Logistic regression analysis.The rates of PrEP awareness,willingness to use and usage rate in different sexual behavior risk groups were investigated.Results Student MSM could be divided into two potential category groups:a low-risk behavior group(82.4%)and a high-risk behavior group(17.6%).The PrEP usage rate(15.8%)was higher in the high-risk behavior group,and the difference was statistically significant compared to the low-risk behavior group(7.2%)(x2=13.43,P<0.05).Student MSM re-siding in the northeast,south,and northwest of China,in the pilot city,and with a sex role of"0.5"(possible acceptance and in-sertion of sexual behavior)were more likely to be in the high-risk behavior group(OR=3.13,3.07,3.87,2.22,1.66,P<0.05).Conclusion Student MSM in high-risk and low-risk sexual differs in the behavior of PrEP,and targeted interventions should be implemented to promote the use of PrEP and reduce HIV infection in this population.