What question did this study set out to answer?

This study aims to examine the effects of smoke-free school policies on cigarette and e-cigarette use among secondary students in Thailand.

January 24, 2026Asian Journal of Social Health and BehaviorOpen Access

Smoking and E-cigarette Use in Smoke-free Schools among Secondary School Students in Thailand: A Multicenter Prospective Cohort Study

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This study aims to examine the effects of smoke-free school policies on cigarette and e-cigarette use among secondary students in Thailand.
Conducted a multicenter prospective cohort study across four regions in Thailand.
Recruited 5555 students in Grades 7 and 8 from both smoke-free and non-smoke-free schools.
Utilized a validated self-administered online questionnaire for data collection.
Applied generalized estimating equations to analyze smoking-related behaviors.
Students in smoke-free schools reported consistent lower prevalence of smoking and e-cigarette use intentions.
Multivariable GEE analysis indicated a reduced odds ratio for smoking (AOR = 0.60) and smoking intention (AOR = 0.74) in smoke-free settings.
Higher odds of witnessing vaping on campus (AOR = 1.36) were reported among these students.

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Implication

Multicenter cohort study shows reduced smoking and e-cigarette intentions in adolescents within smoke-free schools, suggesting effective policy implications.

Cite This Study

Phetphum et al. (2026) studied this question.

synapsesocial.com/papers/697565c5d5e0d64addde7db6 https://doi.org/10.4103/shb.shb_196_25

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Implication

Multicenter cohort study shows reduced smoking and e-cigarette intentions in adolescents within smoke-free schools, suggesting effective policy implications.

Smoking and E-cigarette Use in Smoke-free Schools among Secondary School Students in Thailand: A Multicenter Prospective Cohort Study

Key Points

Discussion

Implication

Cite This Study

Smoking and E-cigarette Use in Smoke-free Schools among Secondary School Students in Thailand: A Multicenter Prospective Cohort Study

Key Points

Discussion

Implication

Cite This Study