Baseline smoking characteristics
| Variable | Proportion of sample (n) | |
|---|---|---|
| STS (n = 169) | Control (n = 169) | |
| Smoked 100+ cigarettes in lifetime | 82.0% (137) | 80.2% (73) |
| Smoking frequency | ||
| Less than weekly smokers | 14.2% (24) | 13.0% (12) |
| Weekly smokers | 18.9% (32) | 15.2% (14) |
| Daily smokers | 66.9% (113) | 71.7% (66) |
| 1–15 cigarettes/day | 50.9% (86) | 56.5% (52) |
| 16–25 cigarettes/day | 11.2% (19) | 14.1% (13) |
| 26+ cigarettes/day | 4.7% (8) | 1.1% (1) |
| Modified Fagerström scores | ||
| 0–2 | 25.4% (43) | 29.7% (27) |
| 3–5 | 53.3% (90) | 54.9% (50) |
| ⩾6 | 21.3% (36) | 15.4% (14) |
| Stage of change | ||
| Precontemplation | 31.0% (52) | 28.6% (26) |
| Contemplation | 26.8% (45) | 35.2% (32) |
| Preparation | 15.5% (26) | 12.1% (11) |
| Action | 26.8% (45) | 24.2% (22) |
| Number of quit attempts in past year | ||
| None | 23.7% (40) | 23.9% (22) |
| One | 24.9% (42) | 39.1% (36) |
| Two | 29.6% (50) | 16.3% (15) |
| Three or more | 21.9% (37) | 20.7% (19) |