Absenteeism, Alcohol use, Alcohol use disorders, Allergies, Alzheimer's disease and other dementias, Anxiety, Anxiety disorders, Appetite loss, Asperger's syndrome, Assets, Asthma, Back pain, Bipolar affective disorder, Birth place, COPD, Cancers, Cataracts, Counseling, Diabetes, Diagnosis, Disability, Drug use disorders, Eating disorders, Education, Employment, Epilepsy, Ethnicity, Fatigue, Glaucoma, Health care personnel, Health care use, Health insurance, Health status, Heart disease, Height, Hospitals, Hours worked, Housing, Hypertension, Illicit drug use, Income, Internet, Interventions, Languages, Leisure activities, Length of stay, Limited mobility, Living conditions, Marital status, Medicines, Mental health diagnostic interview, Mental health symptoms, Micronutrient supplements, Migraine, Nurses, Occupations, Peptic ulcer disease, Personal health expenditures, Physical activity, Pregnancy, Prescriptions, Race, Religion, Rheumatoid arthritis, Schizophrenia, School enrollment, Self-inflicted injuries, Self-treatment, Sleep, Sleep disorders, Stroke, Thyroid gland disorders, Tobacco smoking, Traditional healers, Traditional medicine, Unemployment, Unipolar depressive disorders, Vascular insufficiency of intestine, Weight, Weight change