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
D02bMonths. (Thinking about the last time you tried to quit, how long did you st
Imputation and derivation
Imputation
D02bMonths. (Thinking about the last time you tried to quit, how long did you st
Others
Security
D02bMonths. (Thinking about the last time you tried to quit, how long did you st