SHOTPNUNO is a 1-digit variable:
1: 1 shot
2: 2 shots
3: 3 or more shots (2019-forward)
4: 4 shots
5: 5 shots
6: 6 or more shots (2018 only)
7: Unknown - refused
8: Unknown - not ascertained
9: Unknown - don't know
For sample adults who had ever received the pneumonia vaccine (SHOTPNUEV), SHOTPNUNO indicates the number of pneumonia shots the person had ever had.
Comparability is affected by changes in the top code over time and the 2019 questionnaire redesign. In 2018 only, SHOTPNUNO is top coded at "6 shots or more." Beginning in 2019, it is top coded at "3 shots or more." Additionally, the NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.
- 2018: Sample adults age 18+ who ever had a pneumonia vaccine.
- 2019: Sample adults age 18+ who ever had a pneumonia vaccine (SHOTPNUEV).
- 2018-2019 : SAMPWEIGHT