Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Description
Source of information
HTP7. How many years ago did you first try, even once, a heated tobacco product? [IF REFUSED, ENTER 99]
Imputation and derivation
Imputation
HTP7. How many years ago did you first try, even once, a heated tobacco product? [IF REFUSED, ENTER 99]
Others
Security
HTP7. How many years ago did you first try, even once, a heated tobacco product? [IF REFUSED, ENTER 99]