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Female Epidemiology of Transcription-Mediated Amplification-Based Trichomonas vaginalis Detection in a Metropolitan Setting with a High Prevalence of Sexually Transmitted Infection

ABSTRACT Recent literature has reported increased accuracy of Trichomonas vaginalis transcription-mediated amplification (TMA)-based analyte-specific reagent (ASR) testing in female populations. A retrospective investigation assessed 7,277 female first-void urine, cervical, or vaginal specimens submitted from a high-prevalence sexually transmitted infection (STI) community to characterize prevalence of disease etiologies. The most common STI phenotype reflected detection of solely T. vaginalis (54.2% of all health care encounters that resulted in STI detection). In females with detectable T. vaginalis, codetection of Chlamydia trachomatis and Neisseria gonorrhoeae occurred in 7.8% and 2.7% of health care encounters, respectively. The mean age of women with detectable T. vaginalis (30.6) was significantly higher than those for women with C. trachomatis or N. gonorrhoeae (22.3 and 21.6, respectively; P < 0.0001). T. vaginalis was the predominant sexually transmitted agent in women over the age of 20 (P < 0.0002). C. trachomatis was the most commonly detected agent in females under the age of 21, particularly from cervical specimens. However, first-void urine detection rates for T. vaginalis and C. trachomatis within this age demographic demonstrated no difference (P = 0.92). While overall and cervical specimen-derived detection of T. vaginalis within African American majority geographical locales outweighed that within majority Caucasian geographical regions (P ≤ 0.004), this difference was not noted with first-void urine screening (P = 0.54). Health care professionals can consider TMA-based T. vaginalis screening for a wide age range of patients; incorporation of first-void urine specimens into screening algorithms can potentiate novel insight into the epidemiology of trichomoniasis.