Table 1

Variable description and definition

Variable nameDescription
Individual level
 Quit attemptsA dichotomous indicator equals 1 is the respondent has attempted to quit since the last wave, 0 otherwise
 Weight control belief=1A dichotomous indicator equals 1 is the respondent strongly agrees or agrees on the weight control effect of smoking in the last wave, 0 otherwise
 AgeAge at the survey year
 MarriedA dichotomous indicator equals 1 is the respondent is married, 0 otherwise
 EmployedA dichotomous indicator equals 1 is the respondent is employed, 0 otherwise
 EducationBinary indicators for 3 categories: low, middle and high education (for the USA, Canada and Australia, these categories refer to high school or less, community college/technical school or some college, and college and above; for the UK, these categories refer to secondary school, some college, and college or above)
 IncomeBinary indicators for 3 categories: low, middle and high income (for the USA, Canada and Australia, these categories refer to annual household income less than $30 000, $30 000–59 999 and $60 000 or above; for the UK, these categories refer to annual household income at £15 000 or lower, £15 001–30 000 and £30 001 or higher)
Stratum level
 PriceStratum-specific cigarette prices for a pack of 20 cigarettes in constant 2010 dollars, constructed using the median price reported in each stratum
 Worksite bansThe stratum level average of individuals’ exposure to smoking restrictions at work place (1 no restriction, 2 some restriction, 3 full restriction); possible range: 1–3
 Bar bansThe stratum level average of individuals’ exposure to smoking restrictions at bars (1 no restriction, 2 some restriction, 3 full restriction); possible range: 1–3
 Restaurant bansThe stratum level average of individuals’ exposure to smoking restrictions at restaurants (1 no restriction, 2 some restriction, 3 full restriction); possible range: 1–3
 Antismoking messagingOut of a number of antismoking broadcasting venues (TV, radio, etc), the fraction that each respondent was exposed to was calculated. These individual fractions were averaged to the stratum level and rescaled by multiplying by 10. Possible range: 1–10