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.
Keywords: Hypnosis; hypnotherapy; smoking cessation; systematic review.