Table 3.
Evolution of primary outcome variables by treatment group
|
Treatment group |
Pick-Klop |
Psycho-education |
Waiting list |
Pick-Klop |
Psycho-education |
Waiting list |
Pick-Klop |
Psycho-education |
Waiting list |
|---|---|---|---|---|---|---|---|---|---|
| Assessment-time | Pretest (T0) | Pretest (T0) | Pretest (T0) | Week 2 (T1) | Week 2 (T1) | Week 2 (T1) | Month 3 (T2) | Month 3 (T2) | Month 3 (T2) |
|
Attitudes Towards Nicotine Replacement Therapy Scale |
|
|
|
|
|
|
|
|
|
| - Perceived advantage |
19.3 ±8.6 |
18.8 ±8.8 |
19.7 ±8.8 |
25.2 ±7.9 |
25.1 ± 7.7 |
18.3 ± 8.6 |
24.4 ±8.7 |
25.8 ±7.1 |
20.0 ±8.2 |
| - Drawback |
9.9 ±4.3 |
11.3 ±4.4 |
10.0 ±4.7 |
10.5 ± 4.2 |
9.9 ± 3.8 |
11.2 ± 4.6 |
10.9 ±4.6 |
9.8 ±3.7 |
11.0 ±5.3 |
| - “Don’t know” answers |
2.2 ±2.7 |
2.4 ±2.9 |
2.5 ±3.2 |
1.1 ± 1.9 |
0.9 ± 1.7 |
2.5 ± 2.5 |
0.8 ±1.8 |
0.8 ±1.3 |
2.0 ±1.1 |
|
Attitudes Towards Smoking Scale |
|
|
|
|
|
|
|
|
|
| - Adverse effects of smoking |
38.6 ±6.8 |
38.8 ±8.5 |
39.8 ±5.3 |
40.1 ± 7.6 |
40.9 ± 7.6 |
41.4 ± 5.3 |
39.5 ±7.9 |
41.8 ±7.3 |
39.9 ±6.1 |
| - Psychoactive benefits of smoking |
13.9 ± 4.1 |
14.3 ± 4.1 |
14.0 ± 4.3 |
12.8 ± 4.0 |
14.0 ± 3.6 |
13.6 ± 3.8 |
12.8 ± 4.4 |
12.7 ± 3.9 |
13.5 ± 3.6 |
| - Pleasure of smoking |
14.4 ±3.8 |
13.6 ±3.1 |
14.7 ±3.6 |
13.3 ± 3.6 |
12.6 ± 3.3 |
14.9 ± 3.4 |
12.8 ±3.4 |
12.7 ±4 |
15.4 ±4.2 |
|
Smoking Self-Efficacy Questionnaire |
|
|
|
|
|
|
|
|
|
| - Internal score |
15.6 ±5.9 |
14.0 ±6.0 |
15.9 ±6.7 |
16.2 ± 5.8 |
15.1 ± 5.8 |
15.6 ± 5.6 |
18.8 ±6.9 |
14.9 ±7.9 |
15.4 ±5.2 |
| - External score |
13.8 ±6.3 |
11.9 ±5.3 |
13.7 ±7.0 |
14.6 ± 4.8 |
13.7 ± 5.5 |
13.7 ± 5.8 |
16.4 ±6.9 |
14.1 ±7.6 |
14.1 ±6.7 |
| - Total score |
29.3 ± 10.8 |
25.8 ± 9.5 |
29.8 ± 12.5 |
30.8 ± 9.0 |
28.8 ± 10.0 |
29.3 ± 10.3 |
35.2 ±12.4 |
29.4 ±14.9 |
29.7 ±10.2 |
|
Cigarettes smoked per day |
15.8 ±8.3 |
15.5 ±7.3 |
12.8 ±7.0 |
15.0 ± 8.7 |
14.9 ± 7.7 |
13.3 ± 12.5 |
10.1 ±8.8 |
12.7 ±10.0 |
11.9 ±7.9 |
|
Stage of change,1% |
|
|
|
|
|
|
|
|
|
| - Precontemplation |
38.3 |
20.0 |
43.3 |
42.5 |
20.0 |
63.3 |
50.0 |
46.7 |
60.0 |
| - Contemplation |
48.3 |
61.7 |
46.7 |
36.7 |
60.0 |
30.0 |
32.5 |
38.3 |
35.0 |
| - Preparation |
13.3 |
18.3 |
10.0 |
17.5 |
18.3 |
3.3 |
2.5 |
3.3 |
1.7 |
| - Action |
- |
- |
- |
3.3 |
1.7 |
3.3 |
15.0 |
11.7 |
3.3 |
| Non-smokers,% | - | - | - | 3.3 | 1.7 | 3.3 | 15.0 | 11.7 | 3.3 |
Interval variables are reported by their means and standard deviations, M ± SD. Categorical variables are reported by their percentages,%.
1For the purposes of GEE analysis, participants in the precontemplation stage are grouped in stage 1 and participants in all other stages in stage 2.