Table 4.
Stage of change at follow-up based on complete case data and results of ordinal regression analyses comparing stage of change between the study groups using complete-case analyses (CCA) and intention-to-treat analyses (ITT).
| Sample | Control n (%) | Intervention n (%) | t (df) | P | |||
|
|
|
|
CCA | ITT | CCA | ITT | |
| Total sample a |
|
|
0.33 (164) | 0.23 (78.7) | .74 | .82 | |
|
|
Precontemplation | 72 (26.7) | 65 (22.7) |
|
|
|
|
|
|
Contemplation | 133 (49.3) | 134 (46.9) |
|
|
|
|
|
|
Preparation | 29 (10.7) | 32 (11.2) |
|
|
|
|
|
|
Action | 36 (13.3) | 55 (19.2) |
|
|
|
|
| Baseline occasional smokers b |
|
|
1.60 (89) | 1.33 (78.9) | .11 | .18 | |
|
|
Precontemplation | 8 (15.7) | 5 (5.6) |
|
|
|
|
|
|
Contemplation | 22 (43.1) | 38 (42.2) |
|
|
|
|
|
|
Preparation | 6 (11.8) | 6 (6.7) |
|
|
|
|
|
|
Action | 15 (29.4) | 41 (45.6) |
|
|
|
|
| Baseline daily smokers c |
|
|
-0.24 (151) | -0.40 (89.4) | .81 | .69 | |
|
|
Precontemplation | 64 (29.2) | 60 (30.6) |
|
|
|
|
|
|
Contemplation | 111 (50.7) | 96 (49.0) |
|
|
|
|
|
|
Preparation | 23 (10.5) | 26 (13.3) |
|
|
|
|
|
|
Action | 21 (9.6) | 14 (7.1) |
|
|
|
|
aBased on 270 participants in the control group and 286 in the intervention group.
bBased on 51 participants in the control group and 90 participants in the intervention group.
cBased on 219 participants in the control group and 196 participants in the intervention group.