In-Country Migration and Risk Factors for HIV Acquisition among Pregnant Women in Tijuana, Mexico

Abstract

Objective: To compare HIV prevalence and HIV acquisition risk behaviors between pregnant women residents and migrants. Design: A cross-sectional study of pregnant women of unknown HIV status seeking care at Tijuana General Hospital, Mexico. Methods: Pregnant women attending the labor and delivery unit or the prenatal clinic had a rapid HIV test drawn, with positive results confirmed by Western blot. Migrants were defined as women who had resided in Tijuana for less than 5 years. Results: Between 2007 and 2008, a total of 3331 pregnant women consented to participate. The HIV seroprevalence did not differ between Tijuana residents (18 of 2502, 0.72%) and migrants (3 of 829, 0.36%, P =.32). In multivariate regression analyses, HIV acquisition risk behaviors included methamphetamine use (adjusted odds ratio [OR]: 6.03, 95% confidence interval [CI]: 2.3-15.8, P