At interview, we collected questionnaire data, including age, gender, place of residence (urban or rural), source of water supply (city or well), type of housing (solitary dwelling, multifamily dwelling or apartment), level of education (literate or illiterate) and occupation (employed or unemployed)
At interview, we collected questionnaire data, including age, gender, place of residence (urban or rural), source of water supply (city or well), type of housing (solitary dwelling, multifamily dwelling or…