Document Detail

Is a percentage a percentage? Systematic review of the effectiveness of Scandinavian behavioural modification smoking cessation programmes.
MedLine Citation:
PMID:  20298412     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Tobacco smoke is the leading preventable cause of death in the world. A total of 50% of all smokers will die from a smoking-related disease with a major impact upon quality of life and health-care costs. Tobacco-controlling policies, including smoking cessation, have increasingly been implemented across European countries. Reported effectiveness data on smoking cessation interventions are important for decision making.
OBJECTIVE: This study aimed to conduct a literature review on how the effectiveness (quit rates) of behavioural modification smoking cessation programmes (BMSCPs) - counselling, quitlines and quit-and-win contests - were analysed in Denmark, Sweden and Norway.
METHODS: A systematic review was carried out by using the search engines Medline (U.S. National Library of Medicine, Bethesda, MD, USA), Cinahl (CINAHL Information Systems, EBSCO Industries, Ipswich, MA, USA), Embase (Elsevier, New York, NY, USA) and the grey literature. Following the Russell Standards, studies were selected according to design, analysis of data [intention-to-treat (ITT)/per protocol (PP)], documentation of abstinence and length of follow-up. Cochrane reviews of pharmacological studies were used as the benchmark.
RESULTS: Although ITT analysis is the standard scientific approach advocated, most studies of BMSCPs reviewed were analysed by using the PP approach and were based on self-reported point prevalence estimates. This resulted in the reported 1-year quit rates between 16%-45% (PP) and 9%-23% (ITT). In contrast, pharmacological studies are conservative, as they are randomised, use ITT analysis and have continuous quit rates with biochemical verification of abstinence.
CONCLUSION: This literature review reveals that quit rates of smoking cessation interventions are not always comparable. Scandinavian BMSCPs reported optimistic quit rates, confirmed by Cochrane literature review criteria. Care should be exercised when comparing smoking cessation interventions.
Peter Bo Poulsen; Jens Dollerup; Ann Merete Møller
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The clinical respiratory journal     Volume:  4     ISSN:  1752-699X     ISO Abbreviation:  Clin Respir J     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-03-19     Completed Date:  2010-07-06     Revised Date:  2014-07-30    
Medline Journal Info:
Nlm Unique ID:  101315570     Medline TA:  Clin Respir J     Country:  England    
Other Details:
Languages:  eng     Pagination:  3-12     Citation Subset:  IM    
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MeSH Terms
Review Literature as Topic*
Smoking / adverse effects*
Smoking Cessation / methods*,  psychology*
Comment In:
Clin Respir J. 2010 Jan;4(1):1-2   [PMID:  20298411 ]

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