Table 3.
Pattern of survey completion and change in smoking behavior at 6-month follow-up (N=160).
| Variable | Control group (n=80) |
Treatment group (n=80) |
P valuea | |
| Response to follow-up questionnaires, n (%) |
|
|
|
|
|
|
All surveys completed | 56 (70.0) | 48 (60.0) | .38 |
| Incomplete (last survey completed), n (%) |
|
|
|
|
|
|
6 month | 6 (7.5) | 10 (12.5) |
|
|
|
3 month | 8 (10.0) | 14 (17.5) |
|
|
|
1 month | 3 (3.8) | 4 (5.0) |
|
|
|
No follow-up | 7 (8.8) | 4 (5.0) |
|
| Quit smoking at 6 months, n (%) |
|
|
|
|
|
|
Self-report (questionnaire) | 5 (6.3) | 22 (27.5) | <.001 |
|
|
Confirmed (CO-validated) | 1 (1.3) | 11 (13.8) | .003 |
| Change in Fagerström smoking dependence score at 6 months, n (%) |
|
|
<.001b | |
|
|
Reduced dependence | 11 (13.8) | 41 (51.3) |
|
|
|
No change | 68 (85.0) | 39 (48.8) |
|
|
|
Increased dependence | 1 (1.3) | 0 |
|
| Change in mean Fagerström score from baseline |
|
|
<.001c | |
|
|
At 1-month follow-up | –0.14 | –0.83 |
|
|
|
At 3-month follow-up | –0.38 | –1.34 |
|
|
|
At 6-month follow-up | –0.26 | –1.88 |
|
a From chi-square tests unless otherwise specified.
b From Fisher’s Exact test.
c Obtained from a repeated measures analysis including all available surveys.