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目的 对德阳市院外急救救护车空车返回病例进行流行病学调查,分析空返原因,制定减少空车策略,提高院外急救效率,减少急救医疗资源浪费.方法 收集2014年1月-2015年12月德阳市120急救指挥中心院急救出诊病例,分别对2014年和2015年空车病例流行病学特征和空返率原因进行调查和分析,制定减少空车策略.结果 调查发现,2014年与2015年空比较无计空返率统计学比较无差异,两年平均空返率为24.38%;空返原因前五位分别为病情已缓解(40.26%)、自行来院(36.25%)、院外死亡(8.16%)、病情轻(6.26%)和纠纷未解决(5.64%);空返的疾病谱分布前五位分别为晕倒(23.24%)、车祸(22.24%)、外伤(18.75%)、饮酒过量(10.75%)和猝死(7.24%).结论 需要在政府卫生部门政策指导下,制定相应的策略,提高医护人员和普通居民的自救互救能力,才能有效降低院外急救空返率,提高院外急救效率,节约急救资源.“,”Objective To investigate and analysis the cases of the empty ambulance returning in pre-hospital emergency medical care of Deyang city,to find the reasons and make the policy to reduce the rate of empty ambulance returning,for the goal to increase the efficiency and reduce the waste of medical resources of pre-hospital emergency care. Methods The pre-hospital emergency cases of Deyang city from 2014.01 to 2015.12was investigated,the epidemiological characteristics and the reasons of the empty ambulance returning cases were compared and analyzed between the year of 2014 and 2015.Results The empty ambulance returning rate had no significant difference between the year of 2014 and 2015, the average rate was 24.38%, the first five reasons were remission(40.26%),coming to hospital by self(36.26%), prehospital death(36.25%),mild disease condition(6.26%),having dispute(5.64%),and the first five disease were faint(23.24%),traffic accident(22.24%),trauma(18.75%),drunkenness(10.75%),sudden death (7.24%).Conclusions Under the leading of the health department of government,making the corresponding strategies to improve the self-save and mutual save ability of the medical staff and local residents would reduce the empty ambulance returning rate and save the medical resources effectively.