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Baseline Surveys Reveal Potential for Impacts of Projects in Indonesia and Vietnam

Two new Technical Papers from the Water and Sanitation Program share findings from impact evaluation (IE) baseline surveys conducted as part of the Global Scaling Up Rural Sanitation and Global Scaling Up Handwashing projects. 

In East Java, baseline data was collected from nearly 2,100 households in the Global Scaling Up Rural Sanitation Project area. Among other findings, the survey reveals high rates of diarrhea and associated disorders such as childhood anemia. These health outcome measures will continue to be tracked during the project to assess the causal impacts of the project intervention. “We have to know where we started to know how far we’ve come,” notes Lisa Cameron, a principal investigator for the study. The full report is available in Scaling Up Rural Sanitation: Findings from the Impact Evaluation Baseline Survey in Indonesia.

In Vietnam, a baseline survey was conducted in 3,150 households in the Global Scaling Up Handwashing project area. The research shows that 47 percent of caregivers report washing hands with soap after using the toilet and  less than one-third wash their hands with soap at other critical times, such as before preparing food. However, the survey also reveals the prevalence of diarrhea is significantly lower than the most recent national statistics. These findings shifted the focus of the impact evaluation study in Vietnam from tracking disease to measuring behavior change. This focus could help validate “the suitability of behavior change communication and social marketing approaches to increase handwashing behavior change in Vietnam and elsewhere,” says Claire Chase, an impact evaluation specialist for WSP and principal investigator for the study. The complete report is available in Scaling Up Handwashing Behavior: Findings from the Impact Evaluation Baseline Survey in Vietnam.

The baseline surveys lay the groundwork for the impact evaluation (IE) component of the Global Scaling Up projects, designed to establish the causal impacts of handwashing with soap behavior change and sanitation improvements on specific health and welfare measures, generating robust evidence on a cross-country basis. Scaling Up Handwashing Behavior: Findings from the Impact Evaluation Baseline Survey in Peruwas recently published. Baseline surveys from India and Tanzania (Rural Sanitation) and Senegal and Tanzania (Handwashing) are forthcoming.

For more information and related publications, please visit Global Scaling Up Sanitationand Global Scaling Up Handwashing or contact Eduardo Perez, wsp@worldbank.org.