title: Sex work and HIV status among transgender women: systematic review and meta-analysis.
abstract: BACKGROUND
  Transgender women are a key risk group for HIV, and epidemiologic studies have attributed high rates of HIV infection to behaviors associated with sex work in this population. This systematic review compared HIV prevalence among transgender female sex workers (TFSWs) with prevalence among transgender women who do not engage in sex work, male sex workers, and biologically female sex workers.
  
  
  METHODS
  We conducted systematic searches of 6 electronic databases, and including studies that met pre-established criteria. We extracted data, appraised methodologic quality, assessed heterogeneity, and organized meta-analyses by comparison group.
  
  
  RESULTS
  We identified 25 studies among 6405 participants recruited from 14 countries. Overall crude HIV prevalence was 27.3% in TFSWs, 14.7% in transgender women not engaging in sex work, 15.1% in male sex workers, and 4.5% in female sex workers. Meta-analysis indicated that TFSWs experienced significantly higher risk for HIV infection in comparison to all other groups (relative risk [RR] = 1.46, 95% confidence interval [CI]: 1.02 to 2.09), and particularly in comparison to female sex workers (RR = 4.02, 95% CI: 1.60 to 10.11). We observed significant heterogeneity among the included studies, along with methodologic limitations and imprecise definitions of sex work and gender.
  
  
  CONCLUSIONS
  TFSWs could benefit from targeted HIV prevention interventions, HIV testing, and interventions to help reduce the risk of contracting or transmitting HIV. Structural interventions to reduce reliance on sex work among transgender women may be warranted.
authors.affiliation: Department of Social Policy and Social Work, University of Oxford, Oxford, UK. don.operario@socres.ox.ac.uk
authors.forename: Don
authors.initials: D
authors.lastname: Operario
authors.forename: Toho
authors.initials: T
authors.lastname: Soma
authors.forename: Kristen
authors.initials: K
authors.lastname: Underhill
mesh_terms: D005260:Female; D015658:HIV Infections; D015528:HIV Seroprevalence; D006801:Humans; D011477:Sex Work; D014189:Transsexualism