Table 3.
Mean number of cigarettes smoked per day at follow-up (complete case data) and results of logistic regression analyses comparing cigarette consumption in the study groups using complete-case analyses (CCA) and intention-to-treat analyses (ITT).
Sample | Control mean (SD) | Intervention mean (SD) | t (df) | P | ||
|
|
|
CCA | ITT | CCA | ITT |
Total sample | 10.0 (7.9) | 7.5 (7.2) | –2.80 (164) | –3.18 (43.1) | .006 | .002 |
Baseline occasional smokers | 2.7 (3.2) | 1.7 (2.4) | –2.32 (89) | –2.41 (125.9) | .02 | .02 |
Baseline daily smokers | 11.7 (7.7) | 10.2 (7.1) | –2.22 (151) | –2.53 (37.5) | .03 | .01 |