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Smoking-cessation interventions by type of provider: a meta-analysis.
Mojica WA, Suttorp MJ, Sherman SE, Morton SC, Roth EA, Maglione MA, Rhodes SL, Shekelle PG. Smoking-cessation interventions by type of provider: a meta-analysis. American journal of preventive medicine. 2004 Jun 1; 26(5):391-401.
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.