Efficacy of motivational interviewing for smoking cessation: a systematic review and meta-analysis
Abstract
OBJECTIVE: A systematic review and meta-analysis to investigate the efficacy of interventions incorporating motivational interviewing for smoking cessation and identify correlates of treatment effects.
DATA SOURCES: Medline/PubMed, PsycInfo and other sources including grey literature.
STUDY SELECTION: Title/abstract search terms were motivational interview* OR motivational enhancement AND smok*, cigarette*, tobacco, OR nicotine. Randomised trials reporting number of smokers abstinent at follow up were eligible.
DATA EXTRACTION: Data were independently coded by the first and third authors. We coded for a variety of study, participant, and intervention related variables.
DATA SYNTHESIS: A random effects logistic regression with both a random intercept and a random slope for the treatment effect.
RESULTS: 31 smoking cessation research trials were selected for the study: eight comprised adolescent samples, eight comprised adults with chronic physical or mental illness, five comprised pregnant/postpartum women and 10 comprised other adult samples. Analysis of the trials (9485 individual participants) showed an overall OR comparing likelihood of abstinence in the motivational interviewing (MI) versus control condition of OR 1.45 (95% CI 1.14 to 1.83). Additional potential correlates of treatment effects such as study, sample, and intervention characteristics were examined.
CONCLUSIONS: This is the most comprehensive review of MI for smoking cessation conducted to date. These…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 9,485 participants or records.
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