Rounds 1 and 2 were conducted before and during the lockdown. Modules investigated smoking behaviour, quitting, stocking up, access to cigarettes during lockdown, purchases (including price, outlet type and brand purchased), perceptions of the lockdown and COVID, and socio-economic and demographic information. Rounds 1 and 2 are cross-sectional.
The questionnaires for Round 1 and Round 2 are similar except that Round 2 excludes detailed questions on stock-up, and added some additional questions regarding when during the lockdown respondents quit, and whether respondents ever shared individual cigarettes.
Round 3 was conducted once the ban had been lifted, and added questions about the use of other tobacco products beyond cigarettes, such as pipe tobacco, cigars, snuff, waterpipe, and electronic cigarettes. Round 3 was a longitudinal subset of Round 2, including only respondents who agreed in Round 2 to be interviewed again.