Anemia, Anthropometry, Ascariasis, Assets, Body mass index, Breastfeeding, Child anthropometry, Cooking fuels, Diet, Education, Fertility, Fever, Hemoglobin, Hookworm disease, Insecticide-treated bednets, Intestinal infectious diseases, Intestinal nematode infections, Iodine deficiency, Iron deficiency, Literacy, Malaria, Malnutrition, Micronutrients, Prevalence, Sanitation, Schistosomiasis, Tobacco smoking, Vision loss, Vitamin A deficiency, Water supply