Coupons for Safe Water Project

Summary

Guaranteeing access to safe drinking water is still a challenge in rural households in developing countries, and unsafe water sources are responsible for millions of deaths each year around the world. Coupons for free dilute chlorine solution are a cost-effective and effective way of ameliorating child health and reducing diarrhea incidence. It is still an empirical challenge, however, to see if the positive health effects will be maintained when the program is implemented at scale. In this study, investigators conduct a randomized controlled trial (RCT) at scale to study the impacts of a chlorine coupon program implemented at health clinics on child health, including self-reported diarrhea, fever, and cough incidence in the previous two weeks. Investigators further investigate the pathway of the impact, such as self-reported and objectively measured use of chlorine and frequency of visits to health clinics.

Conditions

• Death
• Death, Infant
• Diarrhea
• Diarrhea, Infantile
• Water-Borne Infectious Disease
• Water-Related Diseases

Interventions

OTHER

Coupons for safe water program: Treatment

Randomly selected women in the treatment group will receive coupons for free chlorine solutions to be redeemed at the health facility each month.

OTHER

Coupons for safe water program: Control

Randomly selected women in the treatment group will not receive coupons for free chlorine solutions after enrollment.

Sponsors & Collaborators

• Abdul Latif Jameel Poverty Action Lab

  collaborator OTHER

• Kenya Medical Research Institute

  collaborator OTHER

• University of Chicago

  lead OTHER

Principal Investigators

• Michael Kremer, PhD · University of Chicago

• Pascaline Dupas, PhD · Stanford University

• Elisa M Maffioli, PhD · University of Michigan

• Akito Kamei, PhD · University of Chicago

• Sammy Khagayi, PhD · Kenya Medical Research Institute

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Model

PARALLEL

Eligibility

Sex

FEMALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-02-21

Primary Completion

2026-02-28

Completion

2026-10-01

Countries

• Kenya

Study Locations