AUROC	Area under the receiver operating characteristic curve
CEU	Compact emergency unit
CI	Confidence interval
CAN	Certified nursing assistant
ED	Emergency department
EMT	Emergency medical technician
IQR	Interquartile range
KTAS	Korean Triage and Acuity Scale
LOS	Length of stay
NPV	Negative predictive value
PPV	Positive predictive value
RN	Registered nurse
SHAP	Shapley additive explanations
SMOTE	Synthetic minority oversampling technique