Chan L, Kass L E
Department of Emergency Medicine, Albany Medical Center, NY 12208, USA.
Am J Emerg Med. 1999 Jan;17(1):41-3. doi: 10.1016/s0735-6757(99)90013-x.
A prospective, consecutive study was performed to determine if medical student supervision in the emergency department (ED) changes patient throughput time (ie, the time from triage to discharge). The mean patient throughput time on days when medical students were present in the ED (group 1) was compared to the mean patient throughput time on days when medical students were absent from the ED (group 2). Throughput time was measured in minutes. The mean throughput times of the two groups were compared by the two tailed t test (P < .05). The study had a power of 90% (beta = .10) to detect a throughput time difference of 20 minutes. The two groups were also compared for mean daily acuity (as gauged by mean daily number of patient admissions) and mean daily patient census. The differences in mean daily throughput times (group 1, 145.2 min v group II, 150.6 min; P = .40), mean daily census (group 1, 28.1 patients v group 2, 28.1 patients; P = .75), and mean daily admissions (group 1, 10.4 patients v group 2, 10.7 patients; P = .74) were all insignificant. Precepting medical students in this ED did not significantly change patient throughput times.
开展了一项前瞻性的连续研究，以确定急诊科（ED）中对医学生的监督是否会改变患者的流转时间（即从分诊到出院的时间）。将医学生在急诊科时（第1组）的平均患者流转时间与医学生不在急诊科时（第2组）的平均患者流转时间进行比较。流转时间以分钟为单位进行测量。两组的平均流转时间通过双尾t检验进行比较（P < 0.05）。该研究有90%的检验效能（β = 0.10）来检测20分钟的流转时间差异。还比较了两组的日均病情严重程度（以日均入院患者数量衡量）和日均患者普查情况。日均流转时间的差异（第1组，145.2分钟对第2组，150.6分钟；P = 0.40）、日均普查情况（第1组，28.1名患者对第2组，28.1名患者；P = 0.75）以及日均入院情况（第1组，10.4名患者对第2组，10.7名患者；P = 0.74）均无统计学意义。在该急诊科指导医学生并不会显著改变患者的流转时间。
