The Association between Latrine Use and Trachoma: A Secondary Cohort Analysis from a Randomized Clinical Trial. Latrine use has been promoted as a component of an integrated strategy for trachoma control. As part of a randomized trial in Ethiopia, 12 communities received a mass azithromycin distribution followed by a latrine promotion intervention. A random sample of children ages 0-9 years in each community was monitored longitudinally for ocular Chlamydia. After latrine construction ended, those communities with a higher proportion of households using latrines were more likely to experience a reduction in the prevalence of ocular Chlamydia. Specifically, for each 10% increase in latrine use, there was a 2.0% decrease in the community prevalence of ocular Chlamydia over the subsequent year.
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