【Key words】Emergency department; Crowding; Visual analogue scale; National emergency department overcrowding scale; Bland-Altman plot

    急诊科拥挤是指急诊医疗服务需求超过急诊、医院或两者所能给患者提供的资源;该定义表明急诊科拥挤可以用“服务需求”和“医疗资源”两类变量间关系进行定量分析^[1]。当前评估急诊科拥挤度主要方法有^[2]：①急诊医护人员主观感受，即视觉模拟评分法(visual analogue scale，VAS);②单个的客观评估指标(如急诊床位占用率等);③多维评分指数，主要有国家急诊科拥挤度评分(national emergency department overcrowding scale，NEDOCS)和急诊科工作指数(emergency department work index，EDWIN)等 ......