Impact Evaluation of Large-Scale Sanitation and Hygiene Interventions

Water and Sanitation Program, World Bank

Status: Unknown

Conditions: Infant Diarrhea

Treatments: Behavioral: Scaling Up Handwashing Behavior Change; Behavioral: Total Sanitation and Sanitation Marketing

Study type: Interventional

Funder types: Other

Identifiers

NCT01465204

1095420

Details and patient eligibility

About

This study consists of an impact evaluation (IE) of the Scaling up Handwashing with Soap (HWWS) and Total Sanitation and Sanitation Marketing (TSSM) projects of the Water and Sanitation Program (WSP) of the World Bank. The objective of this study is to estimate the causal impact of the HWWS and TSSM interventions on the health and welfare of the rural poor in six developing countries: Peru, Tanzania, Senegal, Vietnam, Indonesia, and India. The IE will assess the impact of exposure to the HWWS and TSSM promotion on individual-level hygiene and sanitation practices, and on the health and welfare of children 0-5 years old. By introducing exogenous variation in handwashing and sanitation practices (through exposure to the HWWS and TSSM promotion), the IE will also answer a number of important questions related to the effect of the intended behavioral change (handwashing and improved sanitation) on health and welfare, thus providing information on the extent to which these behaviors alter intended development outcomes. This study uses a cluster-randomized experimental design, whereby the geographic units called clusters (e.g. village, commune, ward, depending on administrative structure of country) are randomly assigned to receive certain components of the Handwashing and Sanitation interventions in the case of treatment arms, and no Handwashing or Sanitation intervention in the case of control arms. . The final sample for the evaluation will consist of approximately 14,000 households, randomly selected, with at least one child between 0 and 24 months of age at baseline. Data will be collected from these 14,000 households (approximately 54,781 subjects) through household surveys, anthropometric measurements, blood and stool samples, direct observations of behaviors, and community surveys. The data collected will be analyzed using a differences in differences approach, where possible, and the results will be disseminated to country officials and others stakeholders.

Enrollment: 21,878 patients

Sex: All

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• at least one child 0-24 months (at baseline) lives in the household
• adult family member (mother of primary caregiver of the selected children for the study) consents to participate in the study and provides consent for the child's participation

Exclusion criteria

• none

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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21,878 participants in 4 patient groups

Control

No Intervention group

Handwashing Intervention

Experimental group

Description:

scaling up handwashing with soap

Treatment:

Behavioral: Scaling Up Handwashing Behavior Change

Sanitation Intervention

Experimental group

Description:

total sanitation and sanitation marketing

Treatment:

Behavioral: Total Sanitation and Sanitation Marketing

Combined

Experimental group

Description:

combined scaling up handwashing with soap and total sanitation and sanitation marketing interventions

Treatment:

Behavioral: Scaling Up Handwashing Behavior Change

Behavioral: Total Sanitation and Sanitation Marketing