Abortion, Abortive outcome, Alcohol use, Anthropometry, Anxiety, Assets, Birth control pills, Birth weight, Blood tests, Body mass index, Breastfeeding, COPD, Cancers, Cohort study, Contraceptives, Cooking fuels, Diabetes, Diet, Education, Electricity, Employment, Secondhand smoke, Ethnicity, Family composition, Family size, Fish, Fruits, Height, Hours worked, Household air pollution, Housing, Housing conditions, Housing materials, Hypertension, Land ownership, Leisure activities, Lighting, Literacy, Marital status, Marriage age, Mass media, Maternal age, Meat, Medicines, Menstruation, Obesity, Occupations, Peptic ulcer disease, Physical activity, Pregnancy, Refrigeration, Religion, Respiratory function tests, Sanitation, Sleep, Smokeless tobacco use, Stroke, Sugar-sweetened beverages, Summary birth history, Tobacco smoking, Transportation, Unemployment, Unipolar depressive disorders, Vegetables, Water supply, Weight, FFQ