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Prevalence and Factors Associated With Trichomonas vaginalis Infection Among High-Risk Women in Los Angeles

Javanbakht, Marjan MPH, PhD*; Stirland, Ali MBChB; Stahlman, Shauna MPH*; Smith, Lisa V. DrPH; Chien, Michael MPH; Torres, Ruel BS§; Guerry, Sarah MD

doi: 10.1097/OLQ.0000000000000026

Abstract: Remnant specimen from 1215 women screening for chlamydia/gonorrhea at 4 different venue types (sexually transmitted disease clinics, home-test kit users, juvenile and adult detention) in Los Angeles, California, were tested for Trichomonas vaginalis. Prevalence of T. vaginalis varied by screening population, and concurrent chlamydia or gonorrhea was independently associated with T. vaginalis.

In an observational study among women screening for chlamydia/gonorrhea, we found that the prevalence of Trichomonas vaginalis infections was relatively high and varied by risk behaviors and concurrent sexually transmitted infection status.

From the *Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA; and †Sexually Transmitted Disease Program, Division of HIV and Sexually Transmitted Disease Programs, ‡Office of Health Assessment & Epidemiology, and §Public Health Laboratory, Los Angeles County Department of Public Health, Los Angeles, CA

The authors declare no conflicts of interest.

This manuscript represents the views of the authors and does not necessarily represent the views of the Department of Public Health or Los Angeles County.

The authors’ sincere appreciation goes to Melina Boudov, Marisol Mejia, LaShawnda Royal, Apurva Uniyal, Jennifer Vonghack, and Peter Kerndt from the Los Angeles County Department of Public Health, Division of HIV and STD Programs. They also thank Taylor Mundt and Joan Sturgeon from the Los Angeles County Public Health Laboratory and Linda Harshman, Craig Hill, and Janet Snook from Hologic/Gen-Probe.

Funding: M.J. was supported by a grant from the National Institutes of Health/National Institutes of Allergy and Infectious Diseases (Grant No. K01AI091861). This research was supported by donations of reagent from Hologic/Gen-Probe Incorporated.

Correspondence: Marjan Javanbakht, MPH, PhD, Department of Epidemiology, School of Public Health, University of California Los Angeles, Box 951772, Los Angeles, CA 90095-1772.E-mail:

Received for publication April 9, 2013, and accepted July 19, 2013.

© Copyright 2013 American Sexually Transmitted Diseases Association