title: Amebiasis among persons who sought voluntary counseling and testing for human immunodeficiency virus infection: a case-control study.
abstract: This case-control study aimed to characterize the factors associated with amebiasis, defined as presence of anti-Entamoeba histolytica antibody titers of ≧ 128 by indirect hemagglutination assay, among persons seeking voluntary counseling and testing (VCT) for human immunodeficiency virus (HIV) infection. Between April 2006 and September 2009, 57 of 4,802 persons (1.2%) seeking VCT services were seropositive for E. histolytica infection. Compared with 228 seronegative controls, case subjects were older (odds ratio [OR] for per 1-year increase, 1.098; 95% confidence interval [CI], 1.036, 1.165), less likely to hold bachelor degree or higher (OR, 0.359; 95% CI, 0.152, 0.846), and were more likely to be men who have sex with men (MSM) (OR, 8.382; 95% CI, 2.050, 34.266) and have oral-anal sex (OR, 4.016; 95% CI, 1.711, 9.427) in multiple logistic regression analysis. The MSM, fecal-oral contamination, lower educational achievement, and older age were associated with increased risk for amebiasis among persons seeking VCT for HIV infection.
authors.affiliation: Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. hcc0401@ntu.edu.tw
authors.forename: Chien-Ching
authors.initials: CC
authors.lastname: Hung
authors.forename: Pei-Ying
authors.initials: PY
authors.lastname: Wu
authors.forename: Sui-Yuan
authors.initials: SY
authors.lastname: Chang
authors.forename: Dar-Der
authors.initials: DD
authors.lastname: Ji
authors.forename: Hsin-Yun
authors.initials: HY
authors.lastname: Sun
authors.forename: Wen-Chun
authors.initials: WC
authors.lastname: Liu
authors.forename: Cheng-Hsin
authors.initials: CH
authors.lastname: Wu
authors.forename: Shan-Chwen
authors.initials: SC
authors.lastname: Chang
mesh_terms: D000328:Adult; D000375:Aging; D000913:Antibodies, Protozoan / Q000097:blood*; D016022:Case-Control Studies; D004748:Entamoeba histolytica / Q000276:immunology*; D004749:Entamoebiasis / Q000150:complications / Q000453:epidemiology*; D005260:Female; D015658:HIV Infections / Q000150:complications* / Q000175:diagnosis*; D018451:Homosexuality, Male; D006801:Humans; D016015:Logistic Models; D008297:Male; D016017:Odds Ratio; D012307:Risk Factors; D016036:Seroepidemiologic Studies
chemical_list: D000913:Antibodies, Protozoan