Table 4.
Results of the regressions of abstinence at week 64 on each hypothesized mediator.
| Hypothesized mediator | b | SE | p-value | OR | 95% CI |
|---|---|---|---|---|---|
| Change in negative affect | |||||
| POMS Total Mood Disturbance score | −.02 | .008 | .016 | .98 | .96–.99 |
| SF-36 Mental Component Scale | .04 | .018 | .026 | 1.04 | 1.00–1.08 |
| Perceived Stress Scale | −.09 | .028 | .001 | .91 | .86–.96 |
| Change in abstinence-specific social support | |||||
| Positive support | .01 | .02 | .42 | 1.01 | .97–1.06 |
| Negative support | −.07 | .03 | .016 | .93 | .88–.98 |
| Positive/negative support | .82 | .32 | .01 | 2.3 | 1.2–4.3 |
| Change in motivation to quit | .55 | .13 | <.0001 | 1.7 | 1.3–2.2 |
| Change in abstinence self-efficacy | .66 | .12 | <.0001 | 1.94 | 1.52–2.47 |
Note: POMS = Profile of Mood States; SF-36 = Medical Outcomes Scale, Short-Form; positive/negative support = the ratio of positive to negative abstinence-specific social support; b = regression coefficient; SE = standard error; OR = odds ratio; CI = confidence interval. Regression coefficients with p-values of less than .05 are presented in bold.