Estimates of World Health Organization (WHO) defined incident diarrhea (3 or more watery stools in 24 h), caregiver-defined incident diarrhea, and incident bloody stool associated with log10 MPN E. coli in each fecal transmission pathway, prospectively (left column) and concurrently (right column). Incidence rate ratio (IRR) and prevalence ratios (PR) estimated with generalized linear models with a log link, a Poisson error structure, an offset for each child’s days at risk (IRR models only), and robust standard errors; models were adjusted for season, monthly income, mother’s education, and study arm. The axis for bloody stool is on a different scale than the other outcomes to accommodate wider confidence intervals.