Variables	Definitions
Diarrhea	According to World Health Organization, diarrhea is the passage of loose, watery stools, occurring three or more times in 24 h.
Water seal latrine	A toilet that has a squatting pan with a water seal with the pit lying immediately below.
Pit latrine	It has a squatting pan and simple pit in the ground lying directly below but without any water seal.
Tap water	A form of chlorinated public water supply to maximize drinking of safe water, while the water is acceptably free from pathogens that have potential to cause disease and often grow in water supply basins.
Shallow tube wells	Those having a depth that is drilled to ≤100 feet, generally easy to install, requiring little effort in maintenance, and giving easy access to drinking water, as they are installed in the neighborhood.
Deep tube wells	Those with depths of 500–700 feet, are expensive, difficult and time-consuming to install, and broadly located but give access to relatively safer drinking water.