Table 3.
Baseline predictors of 7-day point prevalence abstinence at 6-months (n= 586).
| Predictor | Step 1 model: adjusted OR (95% CI) |
Best fitting model: adjusted OR (95% CI) |
|---|---|---|
| Age | ||
| <50 years | 0.83 (0.41–1.67) | 0.86 (0.42–1.77) |
| 50–60 years | 1.02 (0.66–1.58) | 1.10 (0.70–1.74) |
| >60 years | 1.00 (Ref) | 1.00 (Ref) |
| Highest grade completed | ||
| ≤12 years | 0.83 (0.40–1.72) | 0.84 (0.40–1.78) |
| 12 years | 1.00 (0.65–1.55) | 1.08 (0.68–1.70) |
| >12 years | 1.00 (Ref) | 1.00 (Ref) |
| Heaviness of Smoking Index (HSI) | 0.87 (0.76–0.99) | 0.91 (0.79–1.04) |
| HADS-D score | ||
| <8 | 1.00 (Ref) | 1.00 (Ref) |
| ≥8 | 0.84 (0.52–1.36) | 1.05 (0.64–1.74) |
| Did participant smoke during hospitalization | ||
| No | 2.79 (1.51–5.18) | 1.85 (0.97–3.53) |
| Yes | 1.00 (Ref) | 1.00 (Ref) |
| Self-efficacy for remaining abstinent in response to negative affecta | – | 1.07 (1.03–1.10) |
| Perceived likelihood of staying off cigarettes after hospital dischargeb | – | 1.34 (1.16–1.55) |
Additional candidate variables considered for inclusion in the best subsets regression model: self-efficacy for resisting urges to smoke in response to environmental cues, number of prior quit attempts lasting ≥24 h, Contemplation Ladder score, whether or not the participant believes he or she has a smoking-related medical problem, and extent to which participant believes that quitting smoking would improve his/her health.
Represents change in odds of abstinence based on a 1-unit change in self-efficacy scale. Scale contains 6 items reflecting confidence in respondent's ability to refrain from smoking in different situations associated with negative affect, with response options ranging from 1 (not at all sure) to 6 (absolutely sure).
Coded as 1 (not at all likely), 2 (somewhat unlikely), 3 (neither likely nor unlikely), 4 (somewhat likely), or 5 (very likely).