ATIK TRI NUR LAELI, NIM. 202202024 (2026) PENGARUH PENDIDIKAN KESEHATAN TERHADAP TINGKAT PENGETAHUAN TENTANG BAHAYA ROKOK PADA REMAJA DI SMP MUHAMMADIYAH 1 GOMBONG. Skripsi thesis, UNIVERSITAS MUHAMMADIYAH GOMBONG.

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Abstract

Background: Adolescents are a vulnerable group to smoking behavior, particularly due to their limited knowledge of the harmful effects of cigarettes. Health education is one of the effective efforts to enhance adolescents’ understanding of the dangers of smoking. Previous studies have shown that health education delivered through interactive media such as PowerPoint presentations and leaflets can improve comprehension more effectively. Purpose: To determine the effect of health education on the level of knowledge about the dangers of smoking among adolescents at SMP Muhammadiyah 1 Gombong. Methods: This study employed a quasi-experimental design using a pretest posttest with control group design. The sample consisted of 60 students, divided into an intervention group (30 students) and a control group (30 students). The intervention group received health education using PowerPoint presentations and leaflets, while the control group received leaflets only. Data on the level of knowledge about smoking hazards were collected using a knowledge questionnaire. Statistical analysis was performed using the Wilcoxon Signed Rank Test and the Mann Whitney U Test. Results: The Wilcoxon test showed a significant increase in knowledge in the intervention group with a Z value of -4.681 and a p-value of 0.000, while the control group showed a small but significant increase with a Z value of -2.000 and a p-value of 0.046. The Mann Whitney U test results showed a U value of 10.000, a Z value of -6.602, and an Asymp. Sig. (2-tailed) of 0.000. Conclusion: Health education delivered through PPT and leaflet media significantly improves adolescents’ knowledge regarding the dangers of smoking. Recommendations: Future researchers are encouraged to include behavioral or attitudinal variables or to compare other educational media, such as educational videos, to obtain more comprehensive results.

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