Table 1.
Unadjusted and Adjusted Odds Ratios, 95% CI, and p Value for Any Self-defined Quit Attempt (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) | 1.13 (0.85–1.50) | 0.41 | – | – | – | – |
| Age | 1.16 (1.02–1.31) | 0.02 | 1.15 (1.00–1.31) | 0.05 | 1.16 (1.01–1.33) | 0.03 |
| Race (referent: Caucasian) | 0.78 (0.51–1.18) | 0.24 | – | – | – | – |
| Marital status (referent: in relationship) | 0.76 (0.57–0.99) | 0.05 | 0.75 (0.55–1.02) | 0.07 | – | – |
| Education | 0.74 (0.61–0.88) | <0.01 | 0.70 (0.57–0.87) | <0.01 | 0.71 (0.58–0.87) | <0.01 |
| Living situation (referent: do not live with smoker) | 0.98 (0.74–1.28) | 0.86 | – | – | – | – |
| Home smoking policy | 1.09 (0.94–1.27) | 0.27 | – | – | – | – |
| Psychological factors | ||||||
| Stage of change | 2.01 (1.69–2.39) | <0.01 | 1.03 (0.77–1.37) | 0.86 | – | – |
| Contemplation Ladder-6 | 1.26 (1.20–1.32) | <0.01 | 1.20 (1.11–1.30) | <0.01 | 1.21 (1.15–1.27) | <0.01 |
| Temptation | 1.01 (0.99–1.04) | 0.34 | – | – | – | – |
| Self-efficacy (single item) | 1.15 (1.09–1.20) | <0.01 | 1.09 (1.04–1.15) | <0.01 | 1.09 (1.04–1.15) | <0.01 |
| Partner support | 1.07 (1.04–1.09) | <0.01 | 0.99 (0.97–1.03) | 0.93 | – | – |
| Smoking/quitting history | ||||||
| FTNDb | 0.95 (0.90–1.01) | 0.13 | – | – | – | – |
| Number of cigarettes smoked per day | 0.99 (0.97–1.00) | 0.09 | – | – | – | – |
| Number of prior quit attempts | 1.24 (1.14–1.36) | <0.01 | 1.15 (1.04–1.27) | 0.01 | 1.15 (1.04–1.27) | 0.01 |
| Duration longest quit attempts | 1.05 (0.97–1.14) | 0.23 | – | – | – | – |
Note. All significant p values are bolded.
a
Controlling for intervention group.
b
FTND = Fagerström Test for Nicotine Dependence.