故近年來心血管疾病逐漸威脅國人健康，高齡者與肥胖者皆較容易患有心臟疾病。根據研究，心臟停止病患如果能在四分鐘內接受基本生命復甦術，在八分鐘內接受心臟高級救命術，存活率將大幅上升(每延遲1分鐘生還機率將下降10%)。
本研究試圖推估目前臺南市OHCA病患與現有AED之距離與存活率之關係，並判斷現有AED設置數目是否足夠，之後以臺南市便利商店以及各區里民活動中心做為增裝AED之據點，再以最大覆蓋區位問題模型確定所選擇之便利商店及里民活動中心能具有之最大覆蓋率。
求解結果顯示，現有AED的覆蓋率約為13.0 %，也就表示大約有13.0%的OHCA病患能在5分鐘之內被施予電擊，且在臺南市現有資源分布不均的狀況下，必須要設置更多的AED且區位選擇必須正確才能提升AED的覆蓋率，使得 OHCA病患存活率上升。在便利商店增設AED後，覆蓋率皆有上升，整體覆蓋率也從13.0%上升到27.1%；將部分AED由部分便利商店移置里民活動中心後，整體覆蓋率再上升至30.7%左右。

In recent years, cardiovascular disease gradually threaten people's health. Aging of population, westernization of dietary patterns and lack of exercise are high-risk groups suffering from heart diseases. According to the study, if the heart stops patients can receive basic life within four minutes of resuscitation, advanced cardiac life support within eight minutes, the survival rate will rise sharply.
This study attempts to estimate the current relationship between the distances of OHCA patients with AED, and determine the adequacy of the number of existing AED settings. Convenience store and activity center as installed by AED's the maximum coverage stronghold, and the maximal covering location problem model to determine the coverage area of the selected location of the convenience store and community center.
The results showed that the existing AED's coverage of approximately 13.0%, it represents approximately 13.0% of the OHCA patients can be administered within five minutes of shock, and the uneven distribution of existing resources in Tainan the situation, must to set more AED and location selection must be correct in order to enhance AED coverage, making OHCA patients increased survival. After the addition of convenience stores AED, coverage has increased, overall coverage increased from 13.0% to 27.1%; after part of AED transfer to event center, the overall coverage and then rose to about 30.7%.

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