Psychosocial characteristics pattern correlated with HIV-related risky sexual behavior among HIV-negative men who have sex with men: a latent profile analysis

BACKGROUND@#Men who have sex with men (MSM) have become a high risk population of HIV infection due to their risky sexual behaviors. The latent pattern of psychosocial characteristics plays an important effect in HIV-related risky behaviors among HIV-negative MSM.@*METHOD@#Participants were recruited from Wuhan, Nanchang, and Changsha city from September 2017 to January 2018. Social support was assessed by the multidimensional scale of social support, Connor-Davidson Resilience scale-10 items for reliance, the assessment of Stigma towards Homosexuality for sexual minority stigma, the Likert subscale of nondisclosure for identity concealment, the ACE questionnaire-Kaiser-CDC for adverse childhood experience, the Centers for Epidemiological Studies Depression Scale for depression. Latent profile analysis (LPA) and multivariate regression were used to analyze the data.@*RESULTS@#Three psychosocial characteristic patterns were revealed by the LPA. "Social support and resilience group" (SR group), "Identity concealment group" (IC group) and "Adverse childhood experience" (ACE group) were identified, respectively. In comparison with "SR group", "IC group" have a higher likelihood of one-night male partners (AOR = 2.74, 95%CI = [1.54, 4.90]), both fixed and one-night male partners (AOR = 2.01, 95%CI = [1.34, 3.01]) and HIV-unsure male partner (AOR = 2.12, 95%CI = [1.44, 3.13]). Similarly, "ACE group" were more likely having inconsistent condom use (AOR = 2.58, 95%CI = [1.41, 4.73]), and having sex with HIV-positive male partner (AOR = 4.90, 95%CI = [1.95, 12.30]) with comparison of "SR group". In addition, we further revealed that "ACE group" had a higher ratio (90.0%) of inconsistent condom use among MSM whose male partners were HIV-positive.@*CONCLUSIONS@#Six important psychosocial factors were divided into three latent pattern classes. Compared with "SR group", "IC group" and "ACE group" were more likely to engage in HIV-related risky sexual behaviors. Further research may pay more attention to "IC group" and "ACE group" for targeted intervention.

Status of sexually transmitted infections and seeking medical treatment among Vietnamese cross-border female sex workers in Hekou County, Yunnan / 公共卫生与预防医学

Objective To understand the status of sexually transmitted infection and seeking medical treatment behavior, and influencing factors of Vietnamese cross-border female sex workers (FSWs) in Hekou County, Yunnan, and to provide a basis for promoting reproductive health and preventing and controlling the spread of sexually transmitted diseases (STD) in Vietnamese cross-border FSWs. Methods The snowball sampling method was used to recruit research subjects in entertainment venues in Hekou County, Yunnan, to conduct a questionnaire survey and collect blood, vaginal secretions and cervical swab specimens for HIV/STD testing. Results A total of 262 Vietnamese cross-border FSWs were investigated. The total infection rate of sexually transmitted diseases and HIV was 35.8% (94/262). The positive rate of genital herpes simplex, fungal vaginitis, trichomoniasis, wet warts and chlamydia were 23.5%, 8.0%, 2.7%, 1.5% and 1.5%, respectively. The positive rate of HIV was 1.5%. In the past year, 116 Vietnamese cross-border FSWs had symptoms related to sexually transmitted diseases. Among them, 34.5% chose to go to the hospital or private outpatient clinic, 44.8% bought medicines by themselves, and 20.7% did not receive any treatment. The FSWs who reported having sexually transmitted diseases testing in the past year (OR=3.54, P<0.05), came from medium and high-end places (OR=3.94, P<0.05), had more than two symptoms (OR=3.88, P<0.05), and self-perceived high risk of sexually transmitted infection were more likely to seek medical treatment. Conclusion The Vietnamese cross-border FSW population in Hekou County of Yunnan Province had a high rate of sexually transmitted infections. The proportion of seeking medical treatment among FSWs having symptoms related to sexually transmitted diseases was low. It is necessary to guide the Vietnamese cross-border FSWs to seek formal medical treatment.

Effectiveness and associated factors of prevention for mother-to-child human immunodeficiency virus transmission in 536 human immunodeficiency virus-positive pregnant women in Hubei Province / 中华传染病杂志

Objective To evaluate the effectiveness and associated factors of prevention of motherto-child human immunodeficiency virus (HIV) transmission in Hubei Province,and to provide a reference for prevention of mother-to-child transmission of HIV.Methods In this prospective cohort study,HIV-positive pregnant women who were in some counties and cities of Hubei Province from January 2004 to December 2016 were enrolled.Prevention of mother-to-child transmission of HIV was conducted for these HIV-positive pregnant women and their infants,and their clinical data were collected.Descriptive analysis and x2 test were used to analyze the general characteristics of HIV-positive pregnant women and their infants.Logistic regression analysis was adopted to explore the associated factors of mother-to-child HIV transmission.Results In total,536 HIV-positive pregnant women (628 pregnancies) were found,among which,334 pregnant women and 345 infants were enrolled in this study.Twenty-four infants were HIV-positive,which was 6.96％ in all infants (95％CI:4.27％-9.64％).The rates of mother-to-child HIV transmission without prevention,formula feeding only,infant medication plus formula feeding,mother and infant medication plus formula feeding were 35.71％ (95％CI:21.61％-51.93％),8.82％ (95％CI:2.08％-15.57％),7.41％ (95％CI:0.92％-24.22％),and0.48％ (95％CI:0.01％-2.64％),respectively.No antiretroviral medications during delivery (OR =14.484,95 ％CI:1.740-120.577,P=0.013),breastfeeding (OR=6.542,95％CI:2.416-17.713,P=0.000),and CD4-T lymphocyte count＜200 cells/μL during delivery (OR=3.060,95％CI:1.076-8.703,P=0.036) were independent risk factors of mother-to-child HIV transmission.Conclusions The rate of mother-to-child HIV transmission without prevention is high in Hubei Province,which can be significantly reduced by comprehensive interventions (mother and infant medication plus formula feeding).Thus,we should diagnose HIV-positive pregnant women as early as possible,and should give pregnant woman antiretroviral therapy plus infant medication and formula feeding to further reduce the rate of mother-to-child HIV transmission.