Replacing dirt floors with concrete to protect young children's health

Effects of household concrete floors on child health

NIH-funded research Stanford University · NIH-11363494

This project will install concrete floors in homes in rural Bangladesh to find out whether babies and toddlers have less diarrhea and worm infections.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionStanford University NIH-funded
Lab location1 site (Stanford, United States)
Project IDNIH-11363494 on NIH RePORTER

What this research studies

If my household has its dirt floor replaced with concrete before my baby is born, the team will follow my child at 6, 12, 18, and 24 months to check for infections and growth. They will enroll about 800 households where a woman is pregnant and randomly decide which homes get the new floor. The researchers will collect samples and health measurements to measure germs in the house and illness in children. Local Bangladeshi scientists and experienced teams will do the work in the community.

Who could benefit from this research

Good fit: Pregnant women living in rural Bangladeshi households with dirt floors who are willing to have their floor replaced and to bring their child for scheduled follow-ups are the ideal participants.

Not a fit: Families who already have finished concrete floors, who live outside the study area, or children older than two years will not receive the flooring intervention or be eligible.

Why it matters

Potential benefit: If the floors reduce germs and infections, families could see less diarrhea and worm-related illness and better early childhood growth.

How similar studies have performed: Observational studies have reported fewer infections in homes with concrete floors, but randomized trials are limited, so this trial tests whether the association reflects a true benefit.

Where this research is happening

Stanford, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.