Table 2

Smoking-related characteristics of the patient sample: N = 161.

CHARACTERISTICVALUE
Mean (SD) age of initiation, y14.7 (5.2)
Mean (SD) age daily smoking began, y18.2 (7.0)
Mean (SD) cigarettes per day for current smokers15.5 (10.4)
Mean (SD) cigarettes per day before quitting16.5 (12.6)
Mean (SD) nicotine dependence score*3.5 (2.4)
Stage of change for considering smoking cessation, n (%)
 • Precontemplation30 (18.6)
 • Contemplation60 (37.3)
 • Preparation41 (25.5)
 • Action29 (18.0)
  • * Possible scores range from 1 to 10, with scores of 8 or higher indicating high nicotine dependence.