2008/07/15 by Joel D. Killen, Stephen P. Fortmann, Alan F. Schatzberg +7 · 2 citations
Medicine · Psychology · #Smoking Behavior and Cessation #Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes #Substance Abuse Treatment and Outcomes
paper · doi:10.1111/j.1360-0443.2008.02273.x
openalex publication_date 2008/07/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
UNLABELLED: PRIMARY AIM: Examine the effectiveness of extended cognitive behavior therapy (CBT) in promoting longer-term smoking abstinence. DESIGN: Open-label treatment phase followed by extended treatment phase. Randomization conducted prior to entry into open-label treatment phase; analysis based on intention-to-treat to avoid threat of selection bias. SETTING: Community smoking cessation clinic. PARTICIPANTS: A total of 304 adult smokers (> or = 18 years of age; > or = 10 cigarettes/day). INTERVENTION: Open-label (8 weeks): all participants received bupropion SR, nicotine patch, CBT. Extended treatment (12 weeks): participants received either CBT + voicemail monitoring and telephone counseling or telephone-based general support. MEASUREMENTS: Seven-day point prevalence abstinence, expired-air carbon monoxide. RESULTS: At week 20 follow-up, CBT produced a higher 7-day point prevalence abstinence rate: 45% versus 29%, P = 0.006; at 52 weeks the difference in abstinence rates (31% versus 27%) was not significant. History of depression was a moderator of treatment. Those with a positive history had a better treatment response at 20 weeks when assigned to the less intensive telephone support therapy (P < 0.05). CONCLUSION: The superiority of CBT to 20 weeks suggests that continued emphasis on the development of cognitive and behavioral strategies for maintaining non-smoking during an extended treatment phase may help smokers to maintain abstinence in the longer term. At present, the minimum duration of therapy is unknown.