Absenteeism, Alcohol use, Allergies, Anthropometry, Assets, Asthma, BCG vaccines, Birth place, Blood tests, Breastfeeding, Child anthropometry, Cohort study, DTP vaccines, Diabetes, Diet, Eczema, Education, Employment, Secondhand smoke, FFQ, Fruits and vegetables, Health status, Heart disease, Housing conditions, Housing materials, Hypertension, Immunization, Income, Land ownership, Leisure activities, Lighting, Literacy, Livestock, Loans, Marital status, Marriage age, Measles vaccines, Medicines, Menstruation, Multiple births, Occupations, Physical activity, Polio vaccines, Puberty, Refrigeration, Religion, Sanitation, Smokeless tobacco use, Stroke, Tobacco smoking, Waste disposal, Water supply