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
D02A. Thinking about the last time you tried to quit, how long did you stop smoking? [ENTER UNIT ON THIS SCREEN AND NU
Imputation and derivation
Imputation
D02A. Thinking about the last time you tried to quit, how long did you stop smoking? [ENTER UNIT ON THIS SCREEN AND NU
Others
Security
D02A. Thinking about the last time you tried to quit, how long did you stop smoking? [ENTER UNIT ON THIS SCREEN AND NU