title: [Estimating the 2006 prevalence of HIV by gender and risk groups in Tijuana, Mexico].
abstract: OBJECTIVE
  Estimate the 2006 HIV prevalence among adults aged 15-49 from the general population and at-risk subgroups in Tijuana, Mexico.
  
  
  METHODS
  Demographic data was obtained from the 2005 Mexican census and HIV prevalence data was obtained from reports in the literature. We developed a population-based HIV prevalence model for the overall population and stratified it by gender. Sensitivity analysis consisted of estimating standard errors in the weighted-average point prevalence and calculating partial derivatives of each parameter.
  
  
  RESULTS
  HIV prevalence among adults was 0.54% (N = 4347) (range 0.22-0.86% [N = 1750-6944]). This suggests that 0.85% (range 0.39-1.31%) of men and 0.22% (0.04-0.40%) of women could have been HIV-infected in 2006. Men who have sex with men (MSM), followed by female sex workers who are injection drug users (FSW-IDU), FSW-non IDU, female IDU, and male IDU were the most at risk groups of infected individuals.
  
  
  CONCLUSIONS
  The number of HIV-infected adults among at-risk subgroups in Tijuana is significant, highlighting the need to design tailored prevention interventions that focus on the specific needs of certain groups. According to our model, as many as 1 in 116 adults could potentially be HIV-infected.
authors.affiliation: School of Medicine, University of California San Diego, La Jolla, California, USA.
authors.forename: Esmeralda
authors.initials: E
authors.lastname: Iñiguez-Stevens
authors.forename: Kimberly C
authors.initials: KC
authors.lastname: Brouwer
authors.forename: Robert S
authors.initials: RS
authors.lastname: Hogg
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Patterson
authors.forename: Remedios
authors.initials: R
authors.lastname: Lozada
authors.forename: Carlos
authors.initials: C
authors.lastname: Magis-Rodríguez
authors.forename: John P
authors.initials: JP
authors.lastname: Elder
authors.forename: Rolando M
authors.initials: RM
authors.lastname: Viani
authors.forename: Steffanie A
authors.initials: SA
authors.lastname: Strathdee
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D015658:HIV Infections / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D017678:Sex Distribution; D055815:Young Adult
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