Table 2.
Primary and secondary outcomes at 6 month follow-up
| Intervention group (n=2635) | Control group (n=1748) | Unadjusted OR (95% CI) | p value | Adjusted OR (95% CI)* | p value | |
|---|---|---|---|---|---|---|
| Attendance at SSS | 458 (17·4%) | 158 (9·0%) | 2·12 (1·75–2·57) | <0·0001 | 2·20 (1·80–2·70) | <0·0001 |
| 7 day point-prevalent abstinence (validated) | 236 (9·0%) | 97 (5·5%) | 1·68 (1·32–2·15) | <0·0001 | 1·67 (1·29–2·14) | <0·0001 |
| 7 day point-prevalent abstinence (self-report) | 424 (16·1%) | 187 (10·7%) | 1·61 (1·34–1·94) | <0·0001 | 1·62 (1·34–1·97) | <0·0001 |
| 24hr point-prevalent abstinence (self-report) | 445 (16·9%) | 201 (11·5%) | 1·57 (1·31–1·88) | <0·0001 | 1·57 (1·31-1·89) | <0·0001 |
| 1 month prolonged abstinence (self-report) | 357 (13·5%) | 151 (8·6%) | 1·67 (1·36-2·04) | <0·0001 | 1·70 (1·38–2·10) | <0·0001 |
| 3 month prolonged abstinence (self-report) | 240 (9·1%) | 103 (5·9%) | 1·61 (1·26–2·04) | <0·0001 | 1·64 (1·28–2·11) | <0·0001 |
| 3 month prolonged abstinence (validated) | 150 (5·7%) | 60 (3·4%) | 1·70 (1·25–2·31) | 0·001 | 1·68 (1·23–2·30) | 0·001 |
| Number completing 6 week NHS course | 382 (14·5%) | 123 (7·0%) | 2·24 (1·81–2·78) | <0·0001 | 2·30 (1·84–2·87) | <0·0001 |
Data are n (%), unless otherwise specified. OR=odds ratio. SSS=Stop Smoking Service. NHS=National Health Service.
*
Adjusted for sex, age, Index of Multiple Deprivation score, dependence score, intention to quit, determination to quit, longest previous quit attempt, living with other smokers, and previous SSS attendance.