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Objective To explore the experience of childhood sexual abuse (CSA) among men who have sex with men (MSM) in Guangzhou, and to evaluate its impact on risky sexual behaviors in adulthood. Methods A non-probability sampling method was used to recruit MSM aged 18 years and over in Guangzhou. Sociodemographic characteristics, experience of CSA and risky sexual behaviors during the past 6 months were collected using an electronic questionnaire. 2 tests were used to compare the prevalence of CSA and risky sexual behaviors during the past 6 months among different sociodemographic characteristics. Logistic regressions were performed to assess the impact of CSA on risky sexual behaviors. Results Overall, 976 MSM were included with an average age of (28.35±6.83) years old. Nearly one-third (26.95%, 263/976) of MSM experienced CSA. Participants having multiple sexual partners (MSP) and unprotected anal intercourse (UAI) during the past 6 months accounted for 61.68% (602/976) and 47.95% (468/976), respectively. After adjusting age, ethnicity, household registration, local residence time, marital status, education, employment status, monthly income and sexual orientation, the results of multivariate Logistic regression showed that MSM who experienced CSA were likely to have MSP during the past 6 months (aOR=1.62; 95%CI: 1.19-2.22) than those did not experience CSA. But the association between UAI and CSA was not statistically significant. Conclusions The prevalence of CSA among MSM in Guangzhou is high. CSA can substantially increase the risk of risky sexual behaviors in adulthood. Intervention to reduce the risk of sexual risk behaviors may need to be tailored for MSM who experienced CSA.
ABSTRACT
Objective To evaluate the association between sexual sensation seeking (SSS) and sexual risk behaviors among men who have sex with men (MSM) in Guangzhou. Methods MSM aged 18 and over were recruited in Zhitong Charity from June 2017 to April 2018. Data on socio-demographic characteristics, sexual behaviors and SSS were collected using an electronic questionnaire. Logistic regression analyses were performed to evaluate the association between SSS and sexual risk behaviors. Results A total of 500 MSM were included in the current study. The mean age of the participants was (27.77±5.96) years old. The multiple logistic regression analyses showed that MSM with high SSS scores were more likely to engage in multiple sexual partners (OR=2.05, 95% CI: 1.40-2.30,P<0.001), one-night stand (OR=2.11, 95% CI: 1.44-3.09,P<0.001), and unprotected anal intercourse (OR=1.70, 95% CI: 1.16-2.50,P=0.007) than those with low SSS scores. Conclusions High SSS is associated with an increased risk of sexual risk behavior among MSM in Guangzhou. The behavior intervention strategy should be tailored for MSM with high SSS to improve the effectiveness to reduce sexual risk behaviors.
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Objective To develop a human immune-deficiency virus (HIV) infection risk appraisal model suitable for men who has sex with men (MSM) in Guangzhou,and to provide tools for follow-up the outcomes on health education and behavior intervention.Methods A cros-sectional study was conducted in Guangzhou from 2008 to 2010.Based on the HIV surveillance data,the main risk factors of HIV infection among MSM were screened by means of logistic regression.Degree on relative risk was transformed into risk scores by adopting the statistics models.Individual risk scores,group risk scores and individual infection risk in comparison with usual MSM groups could then be calculated according to the rate of exposure on those risk factors appeared in data from the surveillance programs.Results Risk factors related to HIV infection among MSM and the quantitative assessment standard (risk scores and risk scores table of population groups) for those factors were set up by multiple logistic regression,including age,location of registered residence,monthly income,major location for finding their sexual partners,HIV testing in the past year,age when having the first sexual intercourse,rate of condom use in the past six months,symptoms related to sexually transmitted diseases (STDs) and syphilis in particular.The average risk score of population was 6.06,with risk scores for HIV positive and negative as 3.10 and 18.08 respectively (P＜ 0.001 ).The rates of H IV infection for different score groups were 0.9％,2.0％,7.0％,14.4％ and 33.3％,respectively.The sensitivity and specificity on the prediction of scores were 54.4％ and 75.4％ respectively,with the accuracy rate as 74.2％.Conclusion HIV infection risk model could be used to quantify and classify the individual' s infectious status and related factors among MSM more directly and effectively,so as to help the individuals to identify their high-risk behaviors as well as lifestyles.We felt that it could also serve as an important tool used for personalized HIV health education and behavior intervention programs.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the HIV and syphilis infection and AIDS-related behaviors among money boys (MB) in Guangzhou.</p><p><b>METHODS</b>A total of 152 subjects were recruited from MB gathering place (clubs, parks, Internet etc.) by a local NGO. Of which, 151 individuals completed the investigation and blood sample collection. An anonymous face to face interview were used to obtain data of AIDS-related behavior, knowledge and attitudes. Venous blood samples were collected for HIV and syphilis antibody test. χ(2) test were used to compare the characteristics of HIV and syphilis infection subjects and P < 0.05 was counted as significant.</p><p><b>RESULTS</b>HIV and current syphilis infection rate were 11.3% (17/151) and 19.9% (30/151), respectively. Among the subjects, 47.0% (71/151) had unprotected anal intercourse (UAI) with commercial male sex partners, 43.7% (66/151) had UAI with non-commercial male sex partners in the past six month. 85.4% (129/151) were aware of AIDS-related knowledge, while 34.4% (52/151) thought they have no risk of HIV infection, 24.5% (37/151) didn't know the prevalence of HIV among MSM in China, and 55.0% (83/151) had no idea of HIV prevalence or thought HIV prevalence was not serious at all among MB. MB who had experienced sex after drunk/used drugs had higher proportion of syphilis infection (33.3% vs 16.5%; χ(2) = 4.26, P = 0.039), and who had ever been experiencing condom broken during sex had much higher syphilis infection rate than those didn't (36.7% vs 15.7%; χ(2) = 6.64, P = 0.010). A multi-Logistics regression analysis showed that subjects had ever been experiencing condom broke during sex in the past six month were associated with syphilis infection (χ(2) = 6.24, P = 0.012; OR = 3.11, 95%CI = 1.28 - 7.57).</p><p><b>CONCLUSION</b>Money boys have high prevalence of HIV and syphilis infection. They are lack of perception of HIV risk and active in unsafe sex behavior.</p>