Objective　To explore the changes in knowledge, attitude, and practice (KAP) regarding post-traumatic stress disorder (PTSD) among frontline rescue personnel before and after a health education lecture, and to identify the factors influencing satisfaction, so as to provide evidence for improving the effectiveness of PTSD-related health education.

Methods　Using stratified cluster sampling, frontline rescue personnel were recruited from January to April 2025. Ques-tionnaires assessing PTSD-related KAP were administered before and after the health education lecture. Changes in awareness rates and KAP scores before and after the intervention were compared to evaluate the effectiveness of the health education lecture. The single-factor analysis and multivariate Logistic regression were used to analyze factors associated with satisfaction before and after the health education lecture.

Results　A total of 4,950 valid questionnaires were included in the analysis. Among age, sex, education level, marital status, family income per capita, recent trauma exposure, smoking, passive smoking, alcohol consumption and family history of mental illness, the post-lecture awareness rates were significantly higher than the pre-lecture awareness rates (all P < 0.001). The post-lecture KAP score of frontline rescue personnel was 80.00 (70.00, 90.00), which was significantly higher than the pre-lecture score of 60.00 (45.00, 75.00) (P < 0.001). The multivariate Logistic regression analysis showed that body mass index (BMI) [OR=0.968, 95%CI (0.942, 0.995)], passive smoking [OR=0.587, 95%CI (0.446, 0.772)], and Acute Stress Disorder Scale (ASDS) score [OR=0.969, 95%CI (0.951, 0.987)] were related with satisfaction with health education lecture.

Conclusion　The health education lecture can effectively improve the PTSD awareness rates and KAP scores of frontline rescue personnel. Higher BMI, passive smoking, and higher ASDS scores were associated with lower satisfaction with the health education lecture. Personalized health education should be developed based on the different characteristics of frontline rescue personnel.

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