Prevalence of asymptomatic chlamydial infecton among students and development of preventive screening methods.

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Asymptomatic chlamydial infection among general student populations has not yet been detected epidemiologically. Previous surveys have analyzed data from potentially biased samples, not general student populations. To describe prevalence, risk factors and screening methods for asymptomatic chlamydial infection among students, population-based cross-sectional surveys were implemented. Participants comprised 10,111 asymptomatic student volunteers【greater than or equal】18-years-old. Prevalence was 9.6% for females and 6.7% for males. The authors describe reliable epidemiological information and screening methods to facilitate improved coverage and reduce bias among general student populations. Selective criteria including risky sexual behaviors will allow efficient screening for infected individuals.