Ullman R, Block J A, Stratmann W C
Med Care. 1975 Dec;13(12):1011-20. doi: 10.1097/00005650-197512000-00003.
Utilization of the emergency room at an urban community hospital is studied in a format designed to accomplish three complementary objectives: 1) to characterize a sample of individual patients, rather than an unweighted sample of visits, 2) to estimate the number of individuals served during a specified period and the magnitude of the relationship between these patients and the utilization of other hospital services, and 3) to introduce the patient's "frequency-of-visit" as an important variable in the analysis of emergency room utilization. Some specific findings are: 1) the vast majority of patients who used the emergency room did so very infrequently; 46,527 visits were made in one year by an estimated 34,286 different patients; 2) an estimated 2,586 patients made three or more visits during the year; a disproportionately large number of these "high-frequency" users were black, low-income, and from inner-city areas; a relatively small percentage of their visits were for accidental injury, 3) approximately 53 per cent of the hospital's inpatient admissions and 68 per cent of the inpatient days were generated by patients who also made at least one emergency room visit during the year studied.
对一家城市社区医院急诊室的使用情况进行了研究，其采用的形式旨在实现三个互补目标：1）对个体患者样本进行特征描述，而非对就诊次数进行无加权样本分析；2）估计特定时期内接受服务的个体数量以及这些患者与其他医院服务使用之间关系的程度；3）将患者的“就诊频率”作为急诊室使用情况分析中的一个重要变量引入。一些具体发现如下：1）绝大多数使用急诊室的患者就诊频率很低；一年内估计34,286名不同患者进行了46,527次就诊；2）估计有2,586名患者在该年度内就诊三次或更多次；这些“高频”使用者中，黑人、低收入者以及来自市中心地区的人数不成比例地多；他们因意外伤害就诊的比例相对较小；3）在研究的这一年中，该医院约53%的住院患者入院以及68%的住院天数是由那些至少进行过一次急诊室就诊的患者产生的。
