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Educational impact of an animated video on medical students’ knowledge and counselling confidence regarding e-cigarette health risks in Thailand: a prospective cohort study

Chanetnan Kittithorn, Nanticha Rassameepaitoon, S. Srisuma, S. Ruangkanchanasetr, H. Kamalaporn

BMC Medical Education, 2026

57 participants

Abstract

Background Electronic cigarette (E-cig) use is rising among youth; however, formal vaping education remains limited within undergraduate medical curricula. As a result, medical students may enter practice with misconceptions and limited counselling confidence. This study evaluated the educational impact of a brief animated intervention on Thai medical students’ knowledge and confidence in communicating E-cig health risks. Methods A prospective cohort study with repeated measures without a comparison group was conducted among 157 medical students (Years 1–6) at a Thai medical school. A seven-minute animated video developed by medical students addressed five domains: risks and safety, chemical composition, side effects, health consequences including EVALI, and misconceptions regarding smoking cessation. Participants completed online questionnaires at pre-intervention, immediate post-intervention, and three-month follow-up. Outcomes included knowledge scores and self-reported counselling confidence. Results Of 157 students, 56% were female and the median age was 20.5 years. Among the 57 participants who completed assessments at all three time points, mean knowledge scores increased from 18.4 ± 3.58 at pre-intervention to 26.08 ± 3.12 immediately post-intervention, and remained higher than baseline at three-month follow-up (22.36 ± 5.09) (P < 0.001). Improvements were most pronounced in domains related to chemical composition, side effects, and EVALI. Counselling confidence also…

How strong is the evidence?

Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 57 participants or records.

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