Fig. 5.
Risk difference in hygiene indicators between intervention and control arms of the WASH Upgrades for Health in Amhara trial, Ethiopia, 9 November 2015 to 5 March 2019
CI: confidence interval.
Notes: For each question, the risk difference, calculated as percentage points, between the intervention and control arms is shown separately for each annual study visit. Risk differences greater than 0 show that the indicator was more common in the intervention arm than the control arm. A missing plot indicates the question was not asked at the study visit. The overall risk difference and 95% CI between the two arms across the three post-randomization study visits are shown to the right of the plot. The P-value tests for a linear trend across all study visits.
