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Prevalence of Chlamydia trachomatis infection among men screened in 4 U.S. cities
Julia Ann Schillinger1, Eileen Frances Dunne, Johanna Beach Chapin
1Centers for Disease Control and Prevention (CDC), Atlanta, Georgia 30033, USA. jus8@cdc.gov
Objective:
The objective of this study was to measure the prevalence of Chlamydia trachomatis (CT) infection among men in clinical and nonclinical settings across the United States.
Goal:
The goal of this study was to obtain data to inform recommendations regarding male CT screening.
Study:
The authors conducted a cross-sectional study of CT prevalence among adolescent and adult men in 4 U.S. cities (Baltimore, Denver, San Francisco, and Seattle). CT was detected using urine-based testing, and prevalence was calculated for first testing event.
Results:
Over 23,000 men were tested for CT over a 3 1/2-year period. The majority (96%) were asymptomatic. Overall, prevalence was 7% and varied significantly between cities (range: Seattle, 1%; Baltimore, 12%), by age (peak prevalence at age 20-24 years, 9%), and between venues where CT testing was offered.
Conclusions:
At 7%, the prevalence of CT is moderately high among men opportunistically tested in nonclinical and clinical settings.
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