Characteristics of study patients compared to all low-acuity patients and all emergency department patients during the study period.

DCF Data Collection FormPED Pediatric Emergency Departmenthrs hoursMD Medical DoctorCharacteristics of study patients compared to all low-acuity patients and all emergency department patients during the study period.DCF数据采集表（DCF Data Collection Form） 儿科急诊室（Pediatric Emergency Department，简称PED） 小时（hours，简称hrs） 医师（Medical Doctor，简称MD） 本研究期间，将研究患者的特征与所有低危患者以及所有急诊患者的特征进行对比分析