|  | Mean Difference on Smoking Outcome Measures | ||||
---|---|---|---|---|---|---|
Comparisons | 12-month quit rate | 12-month intent-to-treat quit rate | Sustained quitters | Relapsed smokers | Delayed quitters | |
Group 1 2-week supply | Group 2 4-week supply | .05 | .06 | .01 | .00 | .03 |
Group 1 2-week supply | Group 3 6-week supply contingent upon first 2-weeks of use | .07 | .08* | .05 | -.01 | .02 |
Group 1 2-week supply | Group 4 6-week supply | -.08 | -.04 | -.04 | .08* | -.04 |
Group 1 2-week supply | Group 5 8-week supply | -.05 | -.05 | -.03 | .09* | -.02 |
Group 2 4-week supply | Group 3 6-week supply contingent upon first 2-weeks of use | .03 | .03 | .04 | -.02 | -.01 |
Group 2 4-week supply | Group 4 6-week supply | -.12* | -.10* | -.05 | .07 | -.07* |
Group 2 4-week supply | Group 5 8-week supply | -.10 | -.11* | -.04 | .09* | -.06 |
Group 3 6-week supply contingent upon first 2-weeks of use | Group 4 6-week supply | -.15* | -.13* | -.09 | .09* | -.06 |
Group 3 6-week supply contingent upon first 2-weeks of use | Group 5 8-week supply | -.13* | -.14* | -.08 | .10* | -.04 |
Group 4 6-week supply | Group 5 8-week supply | .02 | -.01 | .01 | .02 | .01 |