Caregivers' socio-demographic characteristics.

*1: Chi-square test or Fisher's exact test.*2: Those with a home-based business include seller, hairdressers, tailors, etc.*3: Secondary school or less includes not being able to read and write, only being able to read and write, primary school attendance only, and up to secondary school attendance only.*4: High school or more includes high school and higher education.*5: Other type of hygienic latrines includes single-vault latrines, double-vault latrines, septic tanks, and biogas-vault latrines (MOH 2005).