Cales R H, Anderson P G, Heilig R W
Ann Emerg Med. 1985 Sep;14(9):853-8. doi: 10.1016/s0196-0644(85)80633-8.
To determine the effect of implementation of a regional trauma system on utilization of medical care we studied ambulance transports, emergency department (ED) visits, and hospital days for trauma and nontrauma patients before and after system implementation. Serious injury affects approximately one of every 1,000 persons each year and accounts for approximately one of every 250 ED visits, one of every 100 hospital days, and one of every 20 ambulance transports. Following system implementation the trauma hospitals experienced insignificant changes in annual percentage of market share of ED visits and hospital days and in annual rate of growth of ED visits and hospital days. We conclude that implementation of a medically directed regional trauma system has resulted in a predictable redistribution of a small number of seriously injured patients, and has not been associated with significant changes in utilization of EDs or hospitals.
为确定实施区域创伤系统对医疗服务利用情况的影响，我们研究了系统实施前后创伤患者和非创伤患者的救护车转运、急诊就诊情况以及住院天数。严重创伤每年影响约每1000人中的1人，约占每250次急诊就诊、每100个住院日和每20次救护车转运中的1次。在系统实施后，创伤医院在急诊就诊和住院天数的年度市场份额百分比以及急诊就诊和住院天数的年增长率方面变化不显著。我们得出结论，实施由医学指导的区域创伤系统导致了少数重伤患者的可预测重新分配，并且与急诊或医院利用情况的显著变化无关。
