Systematic Review on Hypnotherapy and Smoking Cessation.

The main objective of this systematic review is to comprehensively describe and evaluate the evidence on hypnotherapy for smoking cessation. Included studies were comprised of adults, had measurable objective/subjective data reflecting smoking cessation, hypnosis or hypnotherapy studied alone or as part of a multicomponent intervention, and at least ten participants. A total of 745 nonduplicate publications were screened, and 63 papers were included for analysis. Based on 33 of these studies, 66.7% reported a positive impact of the hypnosis intervention for smoking cessation. Positive impact studies had longer average treatment duration, greater number of hypnotherapy sessions, and utilized both self-report and objective measures of smoking cessation outcome (40.9% of positive studies using both vs 20% of no impact studies). The efficacy of hypnotherapy for smoking cessation is positive; however, more studies using biologically confirmed abstinence and reduction in the number of cigarettes smoked are needed. Hypnotherapy is a useful approach for smoking cessation that warrants additional inquiry. Future studies are needed that assess treatment fidelity and hypnotizability, provide information on race/ethnicity, and report on side effects and adverse events.