Severity of nicotine dependence was assessed at baseline using the Fagerström Test of Nicotine Dependence (FTND) (Heatherton et al. 1991). Scores for this measure can range from 0 to 10, with a score of 6 or higher indicating severe nicotine dependence (Fagerström 1978). The Health Status Questionnaire (HSQ) (Ware and Sherbourne 1992) is a 39-item instrument comprised of the original SF-36 items plus three additional items used to screen for depression (Radosevich et al. 1994). The SF-36 is a global assessment of health concepts that represent basic human values relevant to functional status and well-being (Ware et al. 1993). Alcohol dependence was assessed using the Self-Administered Alcoholism Screening Test (SAAST) (Hurt et al. 1980).
