Adolescents, Anemia, Anthropometry, Antihelminthics, Ascariasis, Blood disorders, Child anthropometry, Children, Diarrhea, Education, Electricity, Fever, Folic acid, Folic acid deficiency, Food security, G6PD deficiency, Glomerular filtration rate, Hemoglobin, Hookworm disease, Iodine supplements, Iron deficiency, Malaria, Malnutrition, Marital status, Medical tests, Micronutrients, Nutrition, Poverty, Pregnancy, Prevalence, Public social assistance, Respiratory infections, Sanitation, Schistosomiasis, Sickle cell disorders, Social class, Thalassemias, Trichuriasis, Urine tests, Vitamin A deficiency, Water supply, Weight, Zinc