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Interactive Quarterly Early Release Estimates
Interactive Quarterly Early Release Estimates provide health statistics based on data from the National Health Interview Survey (NHIS) for selected health topics for adults aged 18 years and over. All estimates are unadjusted percentages based on preliminary data files and are released prior to final data editing and final weighting to provide access to the most recent information from the NHIS. Estimates presented here are based on quarterly data. Estimates based on half-year data, with groupings by demographic characteristics, are available in the Interactive Biannual Early Release Estimates. Estimates based on the 1997–2018 NHIS can be found in Previous Early Release Reports on Key Health Indicators.
After you select the available health topic, the table will automatically be updated. Estimates can be viewed as a plot under the "Charts" tab, with line graphs for trends over time. The "Technical notes" tab displays a link to technical documentation on the measures and methodology used to produce the estimates. The generated table and graph can be downloaded with the download button 
under each tab. To view the Korn-Graubard (KG) 95% confidence intervals, select the "95% confidence intervals" checkbox.
Notes
Due to the COVID-19 pandemic, NHIS data collection switched to a telephone-only mode beginning on March 19, 2020. Personal visits (with telephone attempts first) resumed in all areas in September 2020. In addition, from August-December 2020, a subsample of adult respondents who completed the NHIS in 2019 were recontacted by telephone and asked to participate again. Response rates were lower and respondent characteristics were different in April–December 2020. Differences observed in estimates between April–December 2020 and other time periods may have been impacted by these differences in respondent characteristics.
Estimates are based on household interviews of a sample of the civilian noninstitutionalized population and are based on preliminary data files. Unknowns were not included in the denominators when calculating percentages. For more information on the data source, methods, and definitions used for this table or chart, refer to the Technical Notes for Early Release Estimates Based on data from the National Health Interview Survey.
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Notes
Due to the COVID-19 pandemic, NHIS data collection switched to a telephone-only mode beginning on March 19, 2020. Personal visits (with telephone attempts first) resumed in all areas in September 2020. In addition, from August-December 2020, a subsample of adult respondents who completed the NHIS in 2019 were recontacted by telephone and asked to participate again. Response rates were lower and respondent characteristics were different in April–December 2020. Differences observed in estimates between April–December 2020 and other time periods may have been impacted by these differences in respondent characteristics.
Estimates are based on household interviews of a sample of the civilian noninstitutionalized population and are based on preliminary data files. Unknowns were not included in the denominators when calculating percentages. For more information on the data source, methods, and definitions used for this table or chart, refer to the Technical Notes for Early Release Estimates Based on data from the National Health Interview Survey.
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Interactive Quarterly Early Release Estimates
For more information on the data source, methods, and definitions used for these tables and charts, refer to the Technical Notes for Early Release Estimates Based on data from the National Health Interview Survey.
Estimates based on the 1997–2018 NHIS can be found by clicking the link below:
Early Release estimates for key health indicators based on the 1997–2018 NHIS Access to the full dataset can be found on Data.CDC.gov by clicking the link below: NHIS Interactive Quarterly Early Release Estimates
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