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According to the statistical data of National Fire Agency, the frequency of emergency medical services in 2010 was 918,882 times, and it reached 1,118,436 times in 2019. The frequency of national emergency medical services increased approximately 21% during these ten years. The subjects of this study are cases of non-traumatic out-of-hospital cardiac arrest (OHCA) patients recorded by Changhua County Fire Department in 2019. A total 1,110 cases of non-traumatic OHCA patients were collected. The information of patients, including factors such as their gender, age, time of EMT & CPR, medications administered, advanced airway treatment, on-site and en-route-to-hospital AED treatment, observed OHCA status, are analysed by SPSS Software using descriptive statistics, correlation analysis and binary logistic regression to initiate a discussion regarding the correlation between the return of spontaneous circulation (ROSC) and each factor. The results of the study will be provided as a reference for the world. The results of study showed that, younger patients who have less time on EMT & CPR, higher frequency of on-site AED treatment, conducted advanced airway treatment, with observed OHCA status have a higher survivability rate. As the age of patients goes up for a class interval, the chance of ROSC became 0.584 times than the original. The ROSC rate for patients without using the advanced airway treatment is 0.56 times higher than patients using the advanced airway treatment. The ROSC rate for patients without observed OHCA status is 0.442 times higher than those with observed OHCA status. The results of study are quite essential and should serve as a reference for relevant units. |