Anemia, Anthropometry, Aplastic and other non-nutritional anemias, Ascariasis, Blood tests, Breastfeeding, Child anthropometry, Diarrhea, Dietary sodium, Edema, Education, Family composition, Family size, Health literacy, Hemoglobin, Hemolytic anemias, Hookworm disease, Iodine deficiency, Iodine supplements, Iron deficiency, Languages, Literacy, Malnutrition, Marital status, Pregnancy, Prevalence, School enrollment, Tobacco smoking, Trichuriasis, Vision loss, Vitamin A deficiency, Vitamin A supplements, Whole grains