Results: There was a significant net change from baseline to the end of the semester (after the intervention) between treatment and control schools for students who were regular smokers, but not for students who were nonsmokers or light smokers. Regular smoking decreased 3.8% in treatment schools and increased 1.5% in control schools (P›001).Regular smoking continued to decrease at 6 months after the intervention in treatment schools, with a total change in prevalence from 25.1% to 20.3%. Involvement in community-advocacy activities and the 3 social constructs—perceived incentive value, perceived self-efficacy, and outcome expectancies— also showed significant net changes between treatment and control schools (all P values ›.01).
Conclusion: Student engagement in community advocacy activities that addressed environmental influences of cigarette smoking resulted in significant decreases in regular smoking.