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目的探讨意外伤害规律，实施有效的三级预防。方法采用二阶段分层整群随机抽样方法并结合重庆市同期卫生统计资料进行分析。结果（１）意外伤害住院病人及其死亡病人均居住院病种的第三位，其中前４位死因系机动车交通事故伤（４２．４５％）、跌（落）伤（２３．２２％）、自杀或自伤（７．９７％）和他杀或他伤（７．１２％）。（２）脑伤占５９．４１％，多发伤占２１．３１％。（３）５９．７２％的意外伤害发生在８∶００～１８∶００时；伤后３分钟，１小时内入院分别占１．８７％，７．９４％。（４）出、入院诊断完全符合率６８．４３％；一次手术后死亡占死亡总数的９５．４％。结论２０～５０岁的人群是意外伤害的高危人群；伤后及时转运、救治及并发症积极处理并加强监护等，对降低意外伤害的院内死亡率具有重要意义
Objective To investigate the law of accidental injury and implement effective tertiary prevention. Methods A two-stage stratified cluster random sampling method was used in combination with the health statistics of Chongqing in the same period. Results (1) The hospitalized patients and their deaths caused by accidental injury were the third most common diseases in the residential colleges. Among them, the top four causes of death were motor vehicle traffic accident injuries (42.45%) and falling or falling injuries (23.22%). ), suicide or self-injury (7.97%) and he killed or wounded him (7.12%). (2) Brain injury accounted for 59.41% and multiple injuries accounted for 21.31%. (3) 59.72% of accidental injuries occurred at 8:00 to 18:00; 3 minutes after injury, admission to hospital within one hour accounted for 1.87% and 7.94%, respectively. (4) The rate of complete compliance with admission and admission was 68.43%; death after one operation accounted for 95.4% of the total deaths. Conclusion The population aged 20-50 years is a high-risk group for accidental injury; prompt transshipment, treatment and complications after injury, and the strengthening of guardianship, etc., are of great significance in reducing the in-hospital mortality rate of accidental injuries.