Codes and Frequencies
For sample adults and sample children who still have asthma (ASTHMASTIL) or had an asthma episode/attack in the past 12 months (ASTHATAKYR), ASTHPREFREQ how often they take a preventive asthma medication, if at all. A similar variable, ASTHPRENOW, exists for years prior to 2020.
Other asthma-related questions were periodically included in the survey; see ASTHMAEV for a summary of these variables currently in the IPUMS NHIS.
- 2020 : SAMPWEIGHT