Participant characteristics | Aust n = 170 | Sweden n = 187 | UK n = 101 | US n = 59 |
---|---|---|---|---|
Age (mean ± SD, years) | 38.6 (11.1) | 41.6 (11.9) | 40 (12.6) | 47.2 (9.7) |
Sex (% males) | 31.8 | 26.2 | 40.0 | 44.1 |
Education (% tertiary education) | 38.2 | 29.4 | 19.8 | 20.3 |
Dependence (% heavy smokers#) | 20 | 3.7 | 10.8 | 20.3 |
Ever use of NRT, % of total | 70.0 | 64.2 | 60.4 | 49.2 |
Ever use of ST, % of total | 7.7 | 40.1 | 11.0 | 10.2 |