Table 4.
The elaborated ME model1 for predicting daily quit probability (n=540).
| Predictor2 | OR | 95% CI | P value |
|---|---|---|---|
| Sex: female | 0.63 | (0.48, 0.82) | 0.0008 |
| FTND score: ≥6 | 0.58 | (0.44, 0.76) | <0.0001 |
| CESD: ≥16 | 0.73 | (0.54, 0.98) | 0.0340 |
| Previous day smoking status | 0.35 | (0.33, 0.38) | <0.0001 |
| Number of smoking days in the last week | 0.76 | (0.74, 0.77) | <0.0001 |
| Week1 vs. week8 | 2.37 | (1.98, 2.84) | <0.0001 |
| Week2 vs. week8 | 1.44 | (1.19, 1.75) | 0.0002 |
| Week3 vs. week8 | 1.19 | (0.98, 1.45) | 0.0782 |
| Week4 vs. week8 | 1.20 | (0.98, 1.46) | 0.0770 |
| Week5 vs. week8 | 1.05 | (0.86, 1.29) | 0.6169 |
| Week6 vs. week8 | 0.92 | (0.75, 1.12) | 0.4085 |
| Week7 vs. week8 | 0.99 | (0.81, 1.22) | 0.9606 |
| Bupropion in week1 | 2.04 | (1.52, 2.74) | <0.0001 |
| Bupropion in week2 | 1.81 | (1.32, 2.47) | 0.0002 |
| Bupropion in week3 | 2.64 | (1.92, 3.63) | <0.0001 |
| Bupropion in week4 | 2.29 | (1.65, 3.17) | <0.0001 |
| Bupropion in week5 | 1.94 | (1.41, 2.69) | <0.0001 |
| Bupropion in week6 | 2.27 | (1.64, 3.15) | <0.0001 |
| Bupropion in week7 | 1.75 | (1.26, 2.44) | 0.0010 |
| Bupropion in week8 | 1.91 | (1.37, 2.67) | 0.0002 |
Notes:
1
The estimated variance of the random effect in the ME model was 5.51; estimates and CIs were adjusted by the scale factor (see Table 2).
2
Analysis adjusted for other baseline factors: race and site.