Table 4.
1-month survey a | 6-month survey | 12-month survey | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Control % b | Intervention % b | P | Control % b | Intervention % b | P | Control % b | Intervention % b | P | Group × time interaction c | |
Tobacco abstinence | 3.1 | 3.2 | .921 | 15.1 | 17.0 | .285 | 23.0 | 24.1 | .435 | 0.894 |
Quit attempt in past month | 7.9 | 7.1 | .744 | 13.8 | 15.3 | .386 | 21.4 | 23.8 | .312 | 0.558 |
Used medications to quit | 5.9 | 5.8 | .848 | 9.4 | 9.6 | .726 | 10.9 | 12.1 | .322 | 0.832 |
Ready to quit in next month (daily smokers) | 23.2 | 22.9 | .833 | 15.8 | 17.5 | .658 | 18.1 | 18.1 | .915 | 0.758 |
Motivated to quit within 12 months (daily smokers) d | 47.5 | 51.1 | .370 | 43.7 | 50.0 | .174 | 42.2 | 43.2 | .765 | 0.525 |
Mean cigarettes/d | 13.3 | 12.7 | .212 | 12.9 | 12.2 | .530 | 12.3 | 11.9 | .964 | 0.916 |
Dr asked about smoking | 67.3 | 72.7 | .004 | 74.0 | 76.6 | .155 | 74.9 | 81.3 | .037 | 0.385 |
Dr advised to quit | 64.8 | 69.7 | .022 | 67.0 | 73.0 | .016 | 70.2 | 75.9 | .136 | 0.873 |
Dr advised to reduce number of cigarettes | 58.3 | 63.4 | .018 | 63.8 | 68.9 | .028 | 63.3 | 69.3 | .084 | 0.933 |
Set a quit date | 2.2 | 2.5 | .521 | 2.7 | 2.7 | .705 | 4.1 | 4.4 | .373 | 0.971 |
Gave a pamphlet | 13.1 | 19.4 | <.001 | 18.7 | 23.8 | .021 | 25.2 | 29.2 | .138 | 0.332 |
Recommended a website | 5.2 | 7.9 | .048 | 6.3 | 8.0 | .328 | 10.6 | 11.2 | .725 | 0.415 |
Recommended a guide | 7.1 | 10.0 | .044 | 7.8 | 10.7 | .080 | 15.1 | 14.6 | .993 | 0.168 |
Agreed to in-person follow-up appointment | 1.7 | 1.3 | .960 | 3.4 | 1.8 | .224 | 1.9 | 2.8 | .209 | 0.198 |
Agreed to follow-up appointment by telephone | 0.6 | 0.9 | .657 | 2.4 | 2.0 | .634 | 0.4 | 1.3 | .258 | 0.377 |
a 1-month survey was completed within 30 days of index clinical visit after physician randomization and intervention.
b Tabled Percentages and means are model-predicted values from the corresponding generalized linear mixed model (GLMM).
c P values for group by time interaction are from GLMM analysis accounting for clustering of observations by physician and repeated measures per patient.
d Includes patients who answered they were planning to quit within next month, or within next 12 months.