The observed and predicted proportion of the population with two consecutive <i>S. japonicum</i> infections.

Abstract

*<p>The expected prevalence of two consecutive infections was estimated based on the prevalence of infections at <i>T₁</i> and <i>T₂</i>.</p>†<p>The expected prevalence of two consecutive infections was estimated accounting for <i>S. japonicum</i> exposure. The infection prediction model included water contact minutes by month and activity for all measures for which at least 20% of cohort participants reported exposure, age, sex, baseline village infection prevalence, county and year of infection test. Prediction models were fit separately for each cohort.</p>‡<p>P-values were estimated assuming the number of individuals with two consecutive infections follows a binomial distribution, where is equal to the expected prevalence of two consecutive infections and is equal to the number of individuals in the full population. Thus the p-value is that of a two-sided, one-sample test assuming the probability of double-infections is equal to <i>P_DI</i>.</p