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
I am going to read you a list of reasons why people may quit smoking. Please let me know if each was a reason why you qu
Imputation and derivation
Imputation
I am going to read you a list of reasons why people may quit smoking. Please let me know if each was a reason why you qu
Others
Security
I am going to read you a list of reasons why people may quit smoking. Please let me know if each was a reason why you qu