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
E18c. (Based on what you know or believe, does breathing other people's smoke ca
Imputation and derivation
Imputation
E18c. (Based on what you know or believe, does breathing other people's smoke ca
Others
Security
E18c. (Based on what you know or believe, does breathing other people's smoke ca