title: Prevalence and correlates of Trichomonas vaginalis infection among female sex workers in a city in Yunnan Province, China.
abstract: Sexual transmission is the fastest growing route of HIV transmission in China, and Trichomonas vaginalis(TV) can facilitate HIV transmission and acquisition. Our goal was to determine the prevalence and correlates of TV infection among female sex workers (FSWs). This cross-sectional study was conducted in a city of Yunnan Province in southern China, with confidential face-to-face interviews and laboratory tests for TV (wet mount) and other sexually transmitted infections. A total of 734 FSWs participated in the study. The prevalence of TV was 9.0% (95% confidence interval [CI] 7.02-11.30). In multivariate analyses, adjusted odds ratios of TV infection were 3.0 (95% CI 1.47-6.01) for herpes simplex virus type 2 seropositive, 2.4 (95% CI 1.37-4.14) for Chlamydia trachomatis infection, 2.6 (95% CI 1.30-5.31) for genital ulcer, 1.9 (95% CI 1.11-3.30) for starting age in commercial sex <20 years, and 0.5 (95% CI 0.27-0.87) for vaginal douching. We found a relatively high prevalence of TV infection among FSWs in Yunnan Province. A range of control strategies that include TV screening are recommended among FSWs, which could contribute significantly to the disruption of transmission by the provision of immediate treatment.
authors.affiliation: Chinese Center for Disease Control and Prevention, Changping District, Beijing, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.affiliation: Independent Consultant, New York City, NY, USA.
authors.forename: Kathleen H
authors.initials: KH
authors.lastname: Reilly
authors.affiliation: Key Laboratory of Immunology of AIDS, Ministry of Health, First Affiliated Hospital, China Medical University, Shenyang, PR China.
authors.forename: Jun-Jie
authors.initials: JJ
authors.lastname: Xu
authors.affiliation: Kaiyuan Center for Disease Control and Prevention, Kaiyuan, Yunnan, PR China.
authors.forename: Gui-Xiang
authors.initials: GX
authors.lastname: Wang
authors.affiliation: National Center for AIDS/STD Prevention and Control, Chinese Center for Disease Control and Prevention, Changping District, Beijing, PR China.
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Ding
authors.affiliation: National Center for AIDS/STD Prevention and Control, Chinese Center for Disease Control and Prevention, Changping District, Beijing, PR China.
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.affiliation: Peking University Clinical Research Institute, Haidian District, Beijing, PR China hbwang2005@163.com wangnbj@163.com.
authors.forename: Hai-Bo
authors.initials: HB
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D011477:Sex Work / Q000706:statistics & numerical data*; D060386:Sex Workers / Q000706:statistics & numerical data*; D012725:Sexual Behavior; D019966:Substance-Related Disorders / Q000150:complications* / Q000453:epidemiology; D014245:Trichomonas Infections / Q000175:diagnosis / Q000453:epidemiology*; D014246:Trichomonas vaginalis / Q000302:isolation & purification; D047568:Unsafe Sex / Q000706:statistics & numerical data; D014505:Urban Population; D044364:Vaginal Douching; D055815:Young Adult
keywords: China; Trichomonas vaginalis; female sex workers; sexually transmitted infections; trichomoniasis; vaginal douching; women