Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Relationship between the proportion of switching from unsafe wells in a village and the average distance from an unsafe well to a safe well in that village (p<0.05). (B) Relationship between the average distance from an unsafe well to the nearest safe well and the proportion of safe wells in that village (p<0.05).
