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United States National Health Interview Survey 2020


General Info
Original or alternative title 
2020 NHIS
Coverage type 
Time period covered 
01/2020 - 12/2020
Data type
  • Cross-sectional
  • Household
  • Individual
  • Interview
  • Longitudinal
  • Nationally representative

The United States National Health Interview Survey (NHIS) is a cross-sectional household interview survey that is fielded continuously throughout the year. The NHIS is a major source of information on the health of the population of the United States. The COVID-19 pandemic created challenges conducting in-person interviews for the 2020 NHIS, requiring changes to field procedures. These changes resulted in three analytic data files for sample adults.

  • Sample Adult Interview for single-year 2020 estimates and trend analyses
  • Sample Adult Longitudinal for analyses of data from 2019 and 2020 for the same individuals
  • Sample Adult Partial for combining data from multiple years that include 2019 and 2020
Absenteeism, Alcohol use, Allergies, Alzheimer's disease and other dementias, Anemia, Assets, Asthma, Attention deficit hyperactivity disorder, Biopsy, Birth place, Birth weight, Bladder cancer, Bone cancers, Breast cancer, COPD, Cancers, Children, Cholesterol, Colon and rectum cancers, Colonoscopy, Congenital anomalies, Coping behavior, Corrective lenses, Dental care, Diabetes, Disability, Edentulism, Education, Emergency care, Employment, Employment benefits, Epilepsy, Ethnicity, Family composition, Gallbladder and biliary tract cancers, General surgery, HPV vaccines, Headache, Health care access, Health care use, Health insurance, Health status, Hearing aids, Hearing loss, Heart disease, Height, Hepatitis, Hepatitis B vaccines, Hepatitis vaccines, Hospitals, Hours worked, Hypertension, Hysterectomy, Income, Influenza vaccines, Insulin, International migration, Internet, Ischemic heart disease, Larynx cancer, Length of stay, Leukemia, Limited mobility, Liver cancer, Marital status, Melanoma, Mental and behavioral disorders, Mental health symptoms, Military service, Mobility aids, Mouth cancer, Musculoskeletal diseases, Occult blood, Oesophagus cancer, Ovary cancer, Pain, Pancreas cancer, Pap smears, Parents, Parkinson's disease, Peptic ulcer disease, Personal health expenditures, Physical activity, Pneumococcal vaccines, Pregnancy, Prescriptions, Prostate cancer, Public social assistance, Race, School enrollment, Screening mammography, Seizures, Sense organ diseases, Sexual behavior, Shingles vaccines, Skin cancers, Sleep, Sleep disorders, Smokeless tobacco use, Stomach cancer, Stroke, Testicular cancer, Tetanus toxoid vaccines, Thyroid cancer, Tobacco smoking, Tourism, Trachea, bronchus, and lung cancers, Transportation, Unemployment, Upper respiratory infections, VCT, Varicella, Vision loss, Weight