Table 2. Cox Proportional Hazards Regressions Predicting Lapse Rate.
| Variable | Unadjusted Hazard Ratio | Adjusted Hazard Ratio | Interaction Model Hazard Ratio | |||
|---|---|---|---|---|---|---|
| Hazard Ratio (95% CI) | p | Hazard Ratio (95% CI) | p | Hazard Ratio (95% CI) | p | |
| PTSD Group | 1.61 (1.06, 2.46) | .026 | 1.58 (1.02, 2.43) | .039 | 4.06 (1.74, 9.49) | .003 |
| Ethnicity (Ref: White) | 1.48 (0.96, 2.28) | .074 | 1.24 (0.80, 1.94) | .340 | 1.63 (0.72, 3.68) | .207 |
| Gender (Ref: Female) | 1.00 (0.66, 1.52) | .983 | 1.36 (0.88, 2.10) | .161 | 0.98 (0.39, 2.46) | .290 |
| Self-efficacy | 1.00 (0.99, 1.00) | .042 | 0.99 (0.99, 1.00) | .015 | 0.99 (0.99, 1.00) | .047 |
| Hollingshead SES | 1.03 (1.02, 1.05) | < .001 | 1.03 (1.01, 1.05) | < .001 | 1.03 (1.01, 1.05) | .001 |
| Fagerström | 1.08 (0.97, 1.19) | .163 | - | - | ||
| Age | 1.02 (1.00, 1.04) | .130 | - | - | ||
| Menthol Cigarette Smoker | 1.12 (0.73, 1.70) | .613 | - | - | ||
| Current MDD | 1.38 (0.76, 2.48) | .289 | - | - | ||
| Current Other Anxiety Disorder | 1.33 (0.76, 2.31) | .321 | - | - | ||
| Lifetime Anxiety Disorder | 1.20 (0.73, 1.95) | .476 | - | - | ||
| Lifetime MDD | 0.96 (0.63, 1.47) | .863 | - | - | ||
| Lifetime Alcohol Dependence | 1.14 (0.75, 1.73) | .537 | - | - | ||
| Lifetime Drug Dependence | 0.91 (0.60, 1.37) | .646 | - | - | ||
| PTSD × Minority | - | - | 0.30 (0.12, 0.74) | .009 | ||
| Gender × Minority | - | - | 2.03 (0.82, 5.02) | 1.26 | ||
| PTSD × Gender | - | - | 0.75 (0.31, 1.83) | .529 | ||
| Likelihood Ratio | 27.08* | 37.90* | ||||
*
p < .05.
SES = socioeconomic status; MDD = Major Depressive Disorder