Table 4.
Unadjusted and Adjusted Odds Ratios, 95% CI, and p Value for 7-day Abstinence (N = 849)a
| Variable | Model 1 | Model 2 | Model 3 | |||
| OR (95% CI) | p Value | OR (95% CI) | p Value | OR (95% CI) | p Value | |
| Social history | ||||||
| Gender (referent: male) | 1.07 (0.74–1.54) | 0.74 | – | – | – | – |
| Age | 1.22 (1.03–1.44) | 0.02 | 1.22 (1.02–1.47) | 0.03 | 1.23 (1.03–1.47) | 0.02 |
| Race (referent: Caucasian) | 0.76 (0.45–1.28) | 0.30 | – | – | – | – |
| Marital status (referent: in relationship) | 0.82 (0.58–1.18) | 0.29 | – | – | – | – |
| Education | 0.77 (0.61–0.98) | 0.03 | 0.70 (0.54–0.92) | 0.01 | 0.75 (0.58–0.97) | 0.03 |
| Living situation (referent: do not live with smoker) | 0.80 (0.56–1.15) | 0.24 | – | – | – | – |
| Home smoking policy | 0.94 (0.77–1.15) | 0.54 | – | – | – | – |
| Psychological factors | ||||||
| Stage of change | 1.70 (1.36–2.13) | <0.01 | 0.92 (0.64–1.34) | 0.68 | – | – |
| Contemplation Ladder-6 | 1.20 (1.13–1.28) | <0.01 | 1.15 (1.04–1.28) | 0.01 | 1.15 (1.08–1.23) | <0.01 |
| Temptation | 1.05 (1.02–1.08) | <0.01 | 1.03 (0.99–1.07) | 0.14 | – | – |
| Self-efficacy (single item) | 1.17 (1.09–1.23) | <0.01 | 1.11 (1.03–1.19) | <0.01 | 1.13 (1.06–1.21) | <0.01 |
| Partner support | 1.07 (1.03–1.11) | <0.01 | 1.02 (0.97–1.06) | 0.49 | – | – |
| Smoking/quitting history | ||||||
| FTNDb | 0.88 (0.81–0.95) | <0.01 | 0.88 (0.82–0.96) | 0.02 | 0.88 (0.81–0.96) | <0.01 |
| Number of cigarettes smoked per day | 0.98 (0.96–0.99) | 0.04 | 0.96 (0.73–1.27) | 0.79 | – | – |
| Number of prior quit attempts | 1.15 (1.05–1.27) | <0.01 | 1.13 (1.02–1.25) | <0.01 | 1.08 (1.00–1.16) | 0.15 |
| Duration longest quit attempts | 1.12 (1.01–1.25) | 0.03 | 1.05 (0.94–1.18) | 0.39 | – | – |
Note. All significant p values are bolded.
a
Controlling for intervention group.
b
FTND = Fagerström Test for Nicotine Dependence.