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
B18g1. Please specify what you used to try to stop smoking.
Imputation and derivation
Imputation
B18g1. Please specify what you used to try to stop smoking.
Others
Security
B18g1. Please specify what you used to try to stop smoking.