Fig. 4From: Investigating the effect of a school-based WASH intervention on soil-transmitted helminth and schistosome infections and nutritional status of school children in Ethiopia: a quasi-experimental study Prevalence of any soil-transmitted helminth infection over time for both arms. The line plots represent the change in prevalence in any soil-transmitted helminth infection over time for the control and intervention arms. The gray areas represent the 95% confidence intervalsBack to article page