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Randomized Controlled Trial
. 2012 Apr;22(2):224-9.
doi: 10.1093/eurpub/ckq137. Epub 2010 Sep 30.

Changes in health-related quality of life with smoking cessation treatment

Affiliations
Randomized Controlled Trial

Changes in health-related quality of life with smoking cessation treatment

J Taylor Hays et al. Eur J Public Health. 2012 Apr.

Abstract

Background: Cigarette smoking causes reduced health-related quality of life (QoL) and smoking abstinence improves health-related QoL. We assessed the effects of treatment for tobacco dependence on the health-related QoL in a 52-week randomized controlled trial of varenicline and bupropion sustained release (SR).

Methods: Subjects who smoked ≥10 cigarettes per day for the past year were randomly assigned to receive varenicline 1 mg twice daily (n = 696), bupropion SR 150 mg twice daily (n = 671) or placebo (n = 685) for 12 weeks and followed post-therapy for an additional 40 weeks. Health-related QoL was assessed using the Smoking Cessation Quality of Life questionnaire at baseline and Weeks 12, 24 and 52.

Results: Health transition (perceived health compared with baseline) and self-control were both significantly improved among subjects receiving varenicline and bupropion SR compared with placebo at Weeks 12, 24 and 52. Similarly, varenicline-treated subjects had significantly improved health transition and self-control compared with subjects who received bupropion SR at Weeks 12 and 24, and at Week 52 for health transition. A significant positive association existed between length of continuous abstinence and improved health transition, vitality, self-control, anxiety and overall mental profile. In most instances both a direct and an indirect effect (through continuous smoking abstinence) of each active treatment (vs. placebo) contributed to improved self-control and health transition.

Conclusion: Treatment with varenicline and bupropion SR for smoking cessation resulted in improved self-control and health transition that was mediated in large part by continuous smoking abstinence.

Trial registration: ClinicalTrials.gov NCT00141206 NCT00143364.

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