title: Association between childhood physical abuse, unprotected receptive anal intercourse and HIV infection among young men who have sex with men in Vancouver, Canada.
abstract: BACKGROUND
  The association between childhood sexual abuse and HIV risk among men who have sex with men (MSM) is well established. However, no studies have examined the potential impact of other forms of childhood maltreatment on HIV incidence in this population.
  
  
  METHODS
  We explored the impact of child physical abuse (CPA) on HIV seroconversion in a cohort of gay/bisexual men aged 15 to 30 in Vancouver, Canada. Cox proportional hazard models were used, controlling for confounders.
  
  
  RESULTS
  Among 287 participants, 211 (73.5%) reported experiencing CPA before the age of 17, and 42 (14.6%) reporting URAI in the past year. After a median of 6.6 years follow-up, 16 (5.8%) participants HIV-seroconverted. In multivariate analysis, CPA was significantly associated with HIV seroconversion (adjusted hazard ratio [AHR] = 4.89, 95% confidence interval (CI): 1.65-14.48), after controlling for potential confounders.
  
  
  CONCLUSIONS
  Our study uncovered a link between childhood physical violence and HIV incidence. Results highlight an urgent need for screening of young gay and bisexual men for histories of violence, and social and structural supports to prevent HIV transmission in this population.
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada.
authors: Arn J
authors: AJ
authors: Schilder
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada.
authors: Aranka
authors: A
authors: Anema
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada.
authors: Jay
authors: J
authors: Pai
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada.
authors: Ashleigh
authors: A
authors: Rich
authors: Faculty of Health Sciences, Simon Fraser, Burnaby, Canada.
authors: Cari L
authors: CL
authors: Miller
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada.
authors: Keith
authors: K
authors: Chan
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada; Division of Global Public Health, Department of Medicine, University of California San Diego, San Diego, United States of America.
authors: Steffanie A
authors: SA
authors: Strathdee
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada; Faculty of Medicine, University of British Columbia, Vancouver, Canada.
authors: David
authors: D
authors: Moore
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada; Faculty of Medicine, University of British Columbia, Vancouver, Canada.
authors: Julio S G
authors: JS
authors: Montaner
authors: British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada; Faculty of Health Sciences, Simon Fraser, Burnaby, Canada.
authors: Robert S
authors: RS
authors: Hogg
mesh_terms: D000328:Adult; D001955:British Columbia / Q000453:epidemiology; D002648:Child; D002649:Child Abuse / Q000523:psychology / Q000706:statistics & numerical data*; D015331:Cohort Studies; D005260:Female; D006679:HIV Seropositivity / Q000453:epidemiology* / Q000523:psychology; D018451:Homosexuality, Male / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D047568:Unsafe Sex / Q000523:psychology / Q000706:statistics & numerical data*