Fig. 2

Changes in craving ratings (Questionnaire of Smoking Urges, QSU) from baseline (BL) to treatment weeks 1 and 6 as well as the three follow-up (FU) assessments (main effect based on the ANOVA results). Three separate lines depict smoker groups (according to FTND), with vertical lines indicating the standard deviation (SD). The x-axis shows the sum of the QSU scores