Prevalence of Chlamydia trachomatis infection among men screened in 4 U.S. cities.
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.


OBJECTIVE
The goal of this study was to obtain data to inform recommendations regarding male CT screening.


METHODS
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.
Schillinger
Julia Ann
JA
Centers for Disease Control and Prevention (CDC), Atlanta, Georgia 30033, USA. jus8@cdc.gov
Dunne
Eileen Frances
EF
Chapin
Johanna Beach
JB
Ellen
Jonathan Mark
JM
Gaydos
Charlotte Ann
CA
Willard
Nancy Jo
NJ
Kent
Charlotte Kathleen
CK
Marrazzo
Jeanne Marisa
JM
Klausner
Jeffrey David
JD
Rietmeijer
Cornelis Arthur
CA
Markowitz
Lauri Ellen
LE
D000293:Adolescent; D000328:Adult; D002690:Chlamydia Infections / Q000453:epidemiology* / Q000209:etiology; D002692:Chlamydia trachomatis; D003430:Cross-Sectional Studies; D006801:Humans; D008297:Male; D008403:Mass Screening; D015995:Prevalence; D014481:United States / Q000453:epidemiology; D014504:Urban Health