Baseline demographic and clinical characteristics of study participants
| Group; mean ± SD* | |||
|---|---|---|---|
| Characteristic | Feedback (n = 21) | Control (n = 23) | p value |
| Age | 34.1 ± 11.3 | 36.2 ± 10.6 | 0.52 |
| Sex, male:female | 13:8 | 15:8 | 0.82 |
| Race, white:nonwhite | 18:3 | 21:2 | 0.56 |
| Education, yr | 13.75 ± 1.9 | 14.1 ± 1.8 | 0.55 |
| No. of cigarettes/d | 19.1 ± 4.5 | 18.5 ± 7.0 | 0.73 |
| Baseline FTND | 5.3 ± 1.4 | 5.1 ± 1.7 | 0.69 |
| Duration of smoking, yr | 17.1 ± 10.4 | 17.9 ± 10.5 | 0.79 |
| Baseline CO | 17.8 ± 8.0 | 21.1 ± 10.9 | 0.25 |
| Baseline QSU-B | 46.1 ± 13.2 | 46.5 ± 11.8 | 0.93 |
| QSU-B Factor 1 | 27.8 ± 6.9 | 28.7 ± 5.4 | 0.62 |
| QSU-B Factor 2 | 18.4 ± 7.7 | 17.8 ± 7.7 | 0.80 |
CO = carbon monoxide; FTND = Fagerström Test for Nicotine Dependence; QSU-B = Questionnaire of Smoking Urges-Brief; SD = standard deviation.
↵* Unless indicated otherwise.