Univariate analyses of risk factors for infection with Giardia duodenalis in people near Kibale National Park, western Uganda.

aVariables based on survey responses refer to the four-week period prior to sample collection. Variables in bold were retained in a final multiple logistic regression model (see text).bNumbers of observations differ among variables due to incomplete reporting of information on some surveys.cWald 95% confidence intervals around odds ratios (OR).dP values were calculated using Fisher's exact tests.