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Asymptomatic genital chlamydia infection can have serious sequelae. Screening has required pelvic examinations, and tests (culture and nonamplified DNA-hybridization) have been insensitive. This study reports on urine sample screening for C. trachomatis infection with a ligase chain reaction in 13,204 female Army recruits. (See JWWH, Oct 1997, p. 75, and BMJ 1997, 315:226).
Among recruits willing to be tested, 9.2% were positive, with the highest prevalence (12.2%) in those aged 17 years. In multivariate analysis, independent risk factors included age under 25 (odds ratio, 3.0; 95% CI, 2.3 to 4.0), black race (OR, 3.4; CI, 2.9 to 3.8), race other than black or white (OR, 1.7; CI, 1.4 to 2.1), having ever had vaginal sex (OR, 5.9; CI, 3.2 to …