<![CDATA[Breast cancer remains a major global public health concern, while participation in breast self-examination (BSE/SADARI) is still suboptimal among women. Inadequate knowledge, attitudes, and practical skills may limit consistent BSE practice, indicating the need for accessible and effective health education media. This study aimed to compare the effectiveness of audiovisual and poster-based health education in improving knowledge, attitudes, and BSE practice among married women aged 30–49 years in the working area of Sukomoro Health Center, Magetan Regency. A quantitative quasi-experimental study was conducted using a nonequivalent pretest–posttest control group design. A total of 156 eligible respondents were allocated to an audiovisual group (n=78) and a poster group (n=78). Data on knowledge, attitudes, and BSE practice were collected using validated and reliable questionnaires and an observation checklist. Within-group changes were analyzed using paired-sample t-tests, while between-group differences were assessed using independent-sample t-tests at a significance level of 0.05. The audiovisual group demonstrated significant improvements in knowledge, attitudes, and BSE practice, with mean scores increasing from 6.09±0.856 to 9.00±0.721, 29.44±1.325 to 37.99±1.222, and 18.94±3.694 to 33.55±3.992, respectively (all p<0.001). In the poster group, knowledge increased from 5.23±1.104 to 6.76±0.900 and practice from 11.32±3.694 to 11.87±3.992 (both p<0.001), whereas attitude did not change significantly. Between-group comparisons showed significant differences in knowledge, attitudes, and practice after the intervention (all p<0.001). These findings indicate that both media can support selected BSE outcomes, while audiovisual education produced broader short-term improvements across cognitive, affective, and behavioral domains. These results provide comparative evidence for selecting educational media in community-based breast cancer early-detection programs.]]>
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