Smoking-cessation Interventions by Type of Provider

A Meta-Analysis

Published in: American Journal of Preventive Medicine, v. 26, no. 5, June 2004, p. 391-401

Posted on RAND.org on December 31, 2003

by Walter Mojica, Marika Booth, Scott E. Sherman, Sally C. Morton, Beth Roth, Margaret Maglione, Shannon Rhodes, Paul G. Shekelle

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OBJECTIVE: To synthesize the evidence on the effectiveness of smoking-cessation interventions by type of provider. METHODS: A random effects meta-regression was estimated to examine the effect of provider and whether the intervention contained nicotine replacement therapy (NRT), on the intervention's relative risk of quitting as compared to placebo or usual care from studies published in databases from inception to 2000. Thirty additional studies not included in the previous 1996 and 2000 U.S. Public Health Service clinical practice guidelines were used to provide the most comprehensive analysis to date of the comparative effectiveness of different types of providers in interventions for smoking cessation that have been published. RESULTS: The effectiveness without NRT follows: psychologist (1.94, 95% confidence interval [CI]: 1.04-3.62); physician (1.87, CI=1.42-2.45); counselor (1.82, CI=0.84-3.96); nurse (1.76, CI=1.21-2.57); unknown (1.27, CI=0.57-2.82); other (1.18, CI=0.67-2.10); and self-help (1.28, CI=0.89-1.82). Effectiveness of most providers increased by almost twofold with the use of NRT. CONCLUSIONS: Smoking-cessation interventions without NRT delivered by psychologists, physicians, or nurses are all effective. NRT increases the effectiveness of most providers.

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