Past-week abstinence rates by condition
| Sample/outcome | Intervention (%) | Comparison (%) | χ2 | p Value |
|---|---|---|---|---|
| *Provided baseline and post-intervention data. | ||||
| †CO <8 ppm. | ||||
| ‡Missing coded to non-abstinence. | ||||
| Longitudinal sample* (n=282) | ||||
| Self reported abstinence | 21.2 | 11.3 | 5.11 | 0.024 |
| Validated abstinence† | 20.5 | 8.7 | 8.01 | 0.005 |
| Including missing cases‡ (n=313) | ||||
| Validated abstinence† | 17.3 | 8.3 | 5.72 | 0.017 |
| Individual participants only (n=253) | ||||
| Validated abstinence† including missing cases‡ | 13.9 | 4.1 | 7571 | 0.006 |