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Factors associated with discontinuation of bupropion and counseling among african american light smokers in a randomized clinical trial

  • Author(s): Nollen, NL
  • Mayo, MS
  • Ahluwalia, JS
  • Tyndale, RF
  • Benowitz, NL
  • Faseru, B
  • Buchanan, TS
  • Cox, LS
  • et al.

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Background: African Americans are at risk of inadequate adherence to smoking cessation treatment, yet little is known about what leads to treatment discontinuation. Purpose: The purpose of this study was to examine the factors associated with discontinuation of treatment in African American light smokers (≤10 cigarettes per day). Methods: Bupropion plasma levels and counseling attendance were measured among 540 African American light smokers in a placebo-controlled randomized trial of bupropion. Results: By week 3, 28.0 % of subjects in the bupropion arm had discontinued bupropion, and only moderate associations were found between the plasma levels and self-reported bupropion use (rs= 0.38). By week 16, 36.9 % of all subjects had discontinued counseling. Males had greater odds of discontinuing medication (OR = 2.02, 95% CI = 1.10-3.71, p = 0.02), and older adults had lower odds of discontinuing counseling (OR = 0.96, 95% CI = 0.94-0.97, p < 0.0001). Conclusions: Bupropion and smoking cessation counseling are underutilized even when provided within the context of a randomized trial. Future research is needed to examine strategies for improving treatment utilization among African American smokers. Trial Registration No. NCT00666978 ( © 2013 The Society of Behavioral Medicine.

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