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
Thinking about the last time you tried to quit, how long did you stop smoking in days?
Imputation and derivation
Imputation
Thinking about the last time you tried to quit, how long did you stop smoking in days?
Others
Security
Thinking about the last time you tried to quit, how long did you stop smoking in days?