“…Potential determinants of access to improved drinking water sources were identified during the literature review [16,26,27], and these included age of the household head (15-34, 35-54, 55, and above), sex of the household head (male, female), education level of the household head (no education, primary, secondary, high school, and tertiary), household size (1-3, 4-6, 7, and more), household wealth index (poorest, poor, middle, rich, and richest), place of residence (rural/urban), and region (Hhohho, Manzini, Shiselweni, and Lubombo). Other available potential explanatory variables in EMICS (such as the distance of water source from the household and how long it took in minutes to reach the water source) were excluded in the analysis because they had extensive missing data.…”