Comparison of the two groups randomised into strategies A (advice) and B (proposal and support), at baseline
| Strategy A | Strategy B | p2-150 | |
| Number | 579 | 690 | |
| Age (y) (mean (SD)) | 38.8 (7.8) | 37.3 (7.7) | 0.01 (0.15) |
| Men | 83% | 82% | 0.63 |
| Living alone | 20% | 21% | 0.67 |
| Chronic cough | 16% | 12% | 0.07 |
| Dyspnea | 12% | 9% | 0.09 |
| Arterial hypertension | 12% | 6% | <0.001 (0.04) |
| Cholesterol screening (at least once) | 69% | 66% | 0.23 |
| Sports activity (weekly hours) | 2.9 (3.1) | 3.2 (3.7) | 0.12 |
| Alcohol (units/day) | 3.4 (4.1) | 2.7 (3.2) | <0.001 (0.006) |
| Psychotrop consumption | 12% | 7% | <0.001 (0.03) |
| Depression† | 20.4% | 17.2% | 0.15 |
| CES-D score | 12.3 (8.7) | 11.7 (7.8) | 0.20 |
| Tobacco habits | |||
| Cigarettes (number/day) | 13.9 (9.6) | 14.7 (9.9) | 0.15 |
| Heavy cigarettes smokers ⩾10 cig/day | 64.0% | 67.0% | 0.28 |
| Cigarillos (number/day) | 0.6 (2.1) | 0.8 (2.7) | 0.15 |
| Cigars (number/day) | 0.5 (3.0) | 0.8 (3.2) | 0.09 |
| Pipe (number/day) | 0.3 (1.2) | 0.4 (1.5) | 0.20 |
| Fagerstrom score | 4.1 (2.1) | 4.2 (2.1) | 0.40 |
| Self perceived dependency to tobacco | 59% | 67% | <0.001 (0.006) |
| Previous smoking cessation attempt? | 73% | 74% | 0.69 |
| Parental history of smoking | |||
| Father | 83% | 84% | 0.64 |
| Mother | 14% | 19% | <0.05 (0.11) |
| Smoking spouse | 38% | 45% | <0.05 (0.03) |
↵2-150 p values were computed using the individual as the statistical unit and (p values) using the physician as the statistical unit.†Depression if score ⩾17 in men or ⩾23 for women.