Three-level logistic analysis related to influencing factors on condom use among female sex workers aged 35 years and above in Qingdao / 中华流行病学杂志

ABSTRACT

Objective To analyze the influencing factors on condom use among 35-yearsor-older female sex workers (OFSWs) in Qingdao by using the three-level logistic model.Methods From March to June 2014,OFSWs were recruited in Qingdao,using respondent-driven sampling.Related information on OFSWs and their recent five sexual partners (not including husband) were obtained by conducting a questionnaire survey on OFSWs.A Three-level logistic regression model was conducted to analyze the influencing factors of condom use between OFSWs and their sexual partners.Results A total of 420 OFSWs participated the survey as well as information on 2 100 sexual partners.Results from the empty model showed that the use of condoms among OFSWs having an aggregation that related to the levels of working sites and their own behaviors.Results from the three-levels of logistic model analysis showed that,OFSWs that having had junior middle school education (OR=1.450,95％CI1.054-1.994)/high school education or above (OR=2.264,95％ CI1.215-4.222),knowing the function of condom use (OR=2.004,95％ CI1.273-3.154) would have higher rates of condom use.OFSWs with higher score of attitude on condom use (OR=0.796,95％CI0.745-0.849),having had syphilis infections in the past (OR=0.657,95％ CI0.478-0.902) would have lower rate of condom use.For the sexual partners,the rate of condom use among OFSWs' regular partners were higher than that of OFSWs' boyfriends (OR=15.291,95％CI8.441-27.700;OR=29.032,95％ CI15.413-54.682).Conclusion Condom use of OFSWs was affected by behaviors of both OFSWs themselves and their sexual partners.Prevention and control programs should focus on OFSWs and their sexual partners at the same time.The key intervention contents should include target populations asOFSWs with low level of education,having had infections of syphilis,those who do not use condoms with their trusted partners.