Effectiveness of Behavior Change Theory-Based Interventions for Reducing Secondhand Smoke Exposure in the Home: A Meta-Analysis

Authors : Ercan Asi, Sebahat Gözüm

Pages : 222-230

Doi:10.46810/tdfd.1817019

View : 71 | Download : 1242

Publication Date : 2025-12-30

Article Type : Research Paper

Abstract :The aim of this meta-analysis is to evaluate the effectiveness of behavior change theory–based interventions in reducing SHS exposure in the home environment. A meta-analysis was conducted by searching Cochrane Library, CINAHL Complete, PubMed, Scopus, and Web of Science for randomized controlled trials published in English between January 2013 and October 2025. Studies implementing behavior-change–based interventions to reduce SHS exposure at home were included. Exposure to secondhand smoke in the home was assessed using data from biomarker tests, environmental measurements, and participant self-reports. Twelve trials with a total of 5,822 participants were included. Most interventions were grounded in behavior change theories, particularly the Health Belief Model. Interventions demonstrated a significant medium effect in reducing SHS exposure (Hedges’ g = −0.216; 95% CI = -0.319 to −0.113; p ≤ .001), with moderate heterogeneity (I² = 60.64%). No publication bias was identified. Theory-based interventions are effective in reducing SHS exposure to the home environment, outperforming education-only approaches. Integrating structured behavior change strategies, such as self-efficacy enhancement, and goal setting, into public health programs may improve smoke-free home practices. Future research should include longer follow-up periods to assess sustainability of outcomes.
Keywords : İkinci el sigara dumanı, Dumansız ev, Davranış değişikliği, Meta-analiz

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