HTP5A. For how long have you been using heated tobacco products on a daily basis? Would you say less than 1 month, 1 to 3 months, 4 to 11 months, 1 to 2 years, or more than 2 years? (HTP5A)
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.