Compliance with medications and quit attempts
| 6-Month abstinence measure | PO group, n/N (%) | Cost-free group, n/N (%) | OR (95% CI) | p Value | Adjusted OR (95% CI)* | p Value* |
| Quit attempts | 8/13 (61.5) | 8/15 (53.3) | 0.71 (0.16 to 3.2) | 0.66 | 0.72 (0.12 to 4.5) | 0.72 |
| Began using medication prescribed | 8/13 (61.5) | 11/15 (73.3) | 1.7 (0.35 to 8.5) | 0.51 | 0.44 (0.03 to 5.9) | 0.54 |
| Compliance with medication >90% | 4/13 (30.7) | 7/15 (46.7) | 2.0 (0.42 to 9.3) | 0.39 | 2.2 (0.35 to 14.5) | 0.40 |
| Compliance with telephone counselling >80% | 8/13 (61.5) | 14/15 (93.3) | 8.7 (0.9 to 88.7) | 0.07 | 4.2 (0.32 to 58.9) | 0.28 |
↵* Adjusted for number of cigarettes smoked per day and self-efficacy.
CF, cost-free pharmacotherapy; PO, prescription only.