The characteristics of patients and index ED visits.

ED indicates emergency department; CCI indicates Charlson comorbidity index before one year of index ED visit; COCI, contiunity of care index before one year of index ED visit.The characteristics of patients and index ED visits.ED即急诊室（Emergency Department）；CCI指首次急诊就诊前一年的查尔森合并症指数（Charlson Comorbidity Index）；COCI指首次急诊就诊前一年的连续性护理指数（Continuity of Care Index）。本数据集涵盖患者及首次急诊就诊的相关特征。