Days abstinent smoking were calculated based upon data collected using the Timeline Follow Back measured at end of treatment (8 weeks following initiation of bupropion/placebo treatment) and at an eleven week follow-up. Consistent with the recommendations of the Society for Research on Nicotine and Tobacco expert panel,17,18 participants were considered abstinent if they self reported complete abstinence on each of 7 days prior to the time of assessment and had salivary cotinine levels of less than or equal to 15 ng/mL. The Fagerstrom Test for Nicotine Dependence (FTND) was administered at the baseline assessment.19 For purposes of this report, we used the entire range of Fagerstrom scores as psychometric data collected on this measure is based upon the sum scores (e.g.,20).
