title: Social cognitive mediators of adolescent smoking cessation: results from a large randomized intervention trial.
abstract: Only one prior study has examined why adolescent smoking cessation interventions are effective. To address this understudied and important issue, we examined whether a large adolescent smoking cessation intervention trial's outcomes were mediated by social cognitive theory processes. In a randomized trial (N = 2,151), counselors proactively delivered a telephone intervention to senior year high school smokers. Mediators and smoking status were self-reported at 12-months postintervention eligibility (88.8% retention). At least 6-months abstinence was the outcome. Among all enrolled smokers, increased self-efficacy to resist smoking in (a) social and (b) stressful situations together statistically mediated 55.6% of the intervention's effect on smoking cessation (p < .001). Among baseline daily smokers, increased self-efficacy to resist smoking in stressful situations statistically mediated 56.9% of the intervention's effect (p < .001). Self-efficacy to resist smoking is a possible mediator of the intervention's effect on smoking cessation.
authors.affiliation: Fred Hutchinson Cancer Research Center, Division of Public Health Sciences, Seattle, WA 98109-1024, USA. jbricker@uw.edu
authors.forename: Jonathan B
authors.initials: JB
authors.lastname: Bricker
authors.forename: Jingmin
authors.initials: J
authors.lastname: Liu
authors.forename: Bryan A
authors.initials: BA
authors.lastname: Comstock
authors.forename: Arthur V
authors.initials: AV
authors.lastname: Peterson
authors.forename: Kathleen A
authors.initials: KA
authors.lastname: Kealey
authors.forename: Patrick M
authors.initials: PM
authors.lastname: Marek
mesh_terms: D000293:Adolescent; D015928:Cognitive Behavioral Therapy; D005260:Female; D006306:Health Surveys; D006801:Humans; D057194:Intention to Treat Analysis; D008297:Male; D020377:Self Efficacy; D012907:Smoking / Q000523:psychology / Q000628:therapy*; D016540:Smoking Cessation / Q000379:methods / Q000523:psychology*; D016896:Treatment Outcome