During the last 30 days, how often have you used electronic cigarettes?
Categories
Value
Category
1
I did not use electronic cigarette in the last 30 days
2
Less than once a week
3
At least once a week but not every day
4
Everyday
Sysmiss
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.