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
Please let me know if each was a reason why you quit smoking. Any other reasons?
Imputation and derivation
Imputation
Please let me know if each was a reason why you quit smoking. Any other reasons?
Others
Security
Please let me know if each was a reason why you quit smoking. Any other reasons?