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Drug Alcohol Depend. 2010 Jun 1;109(1-3):114-9. doi: 10.1016/j.drugalcdep.2009.12.021. Epub 2010 Jan 21.

Mechanisms of change in extended cognitive behavioral treatment for tobacco dependence.

Author information

  • 1University of California, San Francisco, 401 Parnassus Ave., TRC Box 0984, San Francisco, CA 94143, United States. phendricks@lppi.ucsf.edu

Abstract

AIM:

To evaluate potential mediators of an extended cognitive behavioral smoking cessation intervention.

DESIGN:

Analysis of data from a randomized clinical trial of smoking cessation.

SETTING:

The Habit Abatement Clinic, University of California, San Francisco.

PARTICIPANTS:

Participants were older cigarette smokers (>/=50 years old). Those receiving Standard Treatment (N=100) were compared to those receiving extended cognitive behavioral treatment (N=99).

MEASUREMENTS:

Negative affect was measured with the Profile of Mood States (POMS), the Medical Outcome Studies 36-item Short-Form Health Survey (SF-36), and the Perceived Stress Scale (PSS). Abstinence-specific social support was measured with the Partner Interaction Questionnaire (PIQ). Motivation to quit and abstinence self-efficacy were measured on 1-10 scales with the Thoughts about Abstinence Questionnaire. All were measured at the beginning of treatment and week 52.

RESULTS:

Analyses revealed that extended CBT increased abstinence self-efficacy over the first 52 weeks postcessation. This effect, in turn, was positively associated with 7-day point prevalence abstinence at week 64 while controlling for treatment condition, and eliminated the independent effect of treatment condition on abstinence. The test of mediation indicated a significant effect, and abstinence self-efficacy accounted for 61% to 83% of the total effect of treatment condition on smoking abstinence. Results failed to support a mediational role of negative affect, abstinence-specific social support, or motivation to quit.

CONCLUSIONS:

The results of the present study are consistent with theories of relapse and studies of more time-limited interventions, and underscore the importance of abstinence self-efficacy in achieving long-term abstinence from cigarettes.

Copyright (c) 2010 Elsevier Ireland Ltd. All rights reserved.

PMID:
20096510
[PubMed - indexed for MEDLINE]
PMCID:
PMC2973332
Free PMC Article
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