Table 1.
Analytic sample characteristics by country and in comparison to excluded sample.
| Sample characteristics | Analytic sample |
Excluded sample* |
||
|---|---|---|---|---|
| Canada |
Australia |
Total |
|
|
| Nsmokers = 915 | Nsmokers = 923 | Nsmokers = 1,838 | Nsmokers = 2,443 | |
| Age (years)c,f | ||||
| 18–24 | 8% | 5% | 6% | 17% |
| 25–34 | 19% | 20% | 20% | 26% |
| 35–44 | 22% | 23% | 22% | 22% |
| 45–54 | 24% | 25% | 25% | 18% |
| 55–64 | 27% | 27% | 27% | 17% |
| Sexf | ||||
| Female | 54% | 54% | 54% | 64% |
| Educationa,f | ||||
| High school or less | 29% | 34% | 32% | 40% |
| Some college or university | 46% | 42% | 43% | 45% |
| University or more | 26% | 24% | 25% | 15% |
| Incomec,f | ||||
| $29,999 or less | 25% | 23% | 24% | 29% |
| $30,000-$59,999 | 31% | 26% | 28% | 32% |
| $60,000 or more | 44% | 51% | 48% | 39% |
| Heaviness of smokingc,f | ||||
| Mean (SD) | 2.45 (1.57) | 2.76 (1.63) | 2.62 (1.61) | 2.4 (1.62) |
| Quit attempt in prior 4 monthsb,d | ||||
| Yes | 40% | 36% | 38% | 41% |
| Quit Intentions in next 6 monthsa,e | ||||
| Yes | 43% | 39% | 41% | 46% |
| Self-efficacyb,f | ||||
| Mean (SD) | 2.88 (1.16) | 2.77 (1.17) | 2.83 (1.16) | 2.98 (1.19) |
| Response efficacyc,f | ||||
| Less than very much | 23% | 29% | 26% | 19% |
| Less than extremely | 32% | 31% | 32% | 29% |
| Extremely | 44% | 40% | 42% | 52% |
| Reactancec,e | ||||
| Mean (SD) | 3.26 (0.68) | 3.36 (0.66) | 3.32 (0.67) | 3.26 (0.67) |
| Thinking about health risksc | ||||
| Mean (SD) | 4.5 (2.5) | 4.2 (2.5) | 4.4 (2.5) | 4.5 (2.5) |
| Avoided HWLs | ||||
| Yes | 31% | 32% | 32% | 34% |
| Forwent cigarette due to HWLs | ||||
| Never | 80% | 78% | 79% | 80% |
| Once or more | 20% | 22% | 21% | 20% |
Note. CA vs. AU: a, p < .05; b, p < .01; c, p < .001. Analytic vs. ineligible sample: d, p < .05; e, p < .01; f, p < .001. In analytic sample, n observations = 7,120 (CA n observations = 3,266 and AU n observations = 3,854).
*Excluded sample consists of participants who were not followed up.