Prevalence ratios for risk-factors of schistosomiasis infection.

Unadjusted and adjusted multilevel mixed-effects generalized linear models with robust variance estimates using a "modified Poisson" approach to estimate the prevalence ratios for schistosomiasis risk-factors among study participants in Uganda from households with water bodies mapped for their EA; clustering accounted for at the EA level. Adjusted model includes interaction term for age and sex.