Description

For sample adults and sample children aged 12 to 17 who have had one COVID-19 vaccination (CVDSHTNUM), CVDSHTADD reports whether a doctor or other health professional told them that they need an additional dose of the 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.

Comparability

This variable has no comparability issues.

Universe

Availability

• 2021

Weights

• 2021 : SAMPWEIGHT