CHARACTERISTIC | VALUE |
---|---|
Mean (SD) age of initiation, y | 14.7 (5.2) |
Mean (SD) age daily smoking began, y | 18.2 (7.0) |
Mean (SD) cigarettes per day for current smokers | 15.5 (10.4) |
Mean (SD) cigarettes per day before quitting | 16.5 (12.6) |
Mean (SD) nicotine dependence score* | 3.5 (2.4) |
Stage of change for considering smoking cessation, n (%) | |
• Precontemplation | 30 (18.6) |
• Contemplation | 60 (37.3) |
• Preparation | 41 (25.5) |
• Action | 29 (18.0) |
↵* Possible scores range from 1 to 10, with scores of 8 or higher indicating high nicotine dependence.