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
EC6. How old were you when you first tried an electronic cigarette, even once? [IF DON'T KNOW OR REFUSED, ENTER 99]
Imputation and derivation
Imputation
EC6. How old were you when you first tried an electronic cigarette, even once? [IF DON'T KNOW OR REFUSED, ENTER 99]
Others
Security
EC6. How old were you when you first tried an electronic cigarette, even once? [IF DON'T KNOW OR REFUSED, ENTER 99]