Codes and Frequencies
Description
For individuals who reported the month of their most recent COVID-19 vaccination of two or more doses (CVDMODOSE2), CVDYRDOSE2 reports the year of their most recent COVID-19 vaccination.
NCHS added nearly 30 questions related to COVID starting in quarter 3 of the 2020 NHIS questionnaire, eight of which are asked of both sample adults and sample children. For the full list of variables, as well as information about COVID-related changes to the NHIS, please see the user note.
Universe
- 2021: Sample adults 18+ interviewed in quarters 2-4 and sample children 12-17 interviewed in quarters 3 and 4 who gave month of second most recent COVID-19 vaccination or don't know (CVDMODOSE2)
- 2022: All sample adults and sample children ages 5-17 who have had two or more COVID-19 vaccinations, and if interviewed in August through December, sample children ages 0-4 who have had two or more COVID-19 vaccinations (CVDSHTNUM).
Availability
- 2021-2022
Weights
- 2021-2022 : SAMPWEIGHT