Table 2.

Top 14 contribution variables for each hospital.

Top Variable	Hospital A	Hospital B	Hospital C
1	Systolic blood pressure	Heart rate	Consciousness
2	Heart rate	Systolic blood pressure	Systolic blood pressure
3	Temperature	Age	SpO2
4	Diastolic blood pressure	Diastolic blood pressure	Temperature
5	Age	Temperature	Age
6	SpO2	SpO2	Diastolic blood pressure
7	Respiratory rate	Respiratory rate	Heart rate
8	Day of week	Day of week	Respiratory rate
9	KTAS	Consciousness	KTAS
10	Time of visit	Time of visit	Time of visit
11	Consciousness	KTAS	Day of week
12	Route of arrival	Route of arrival	Route of arrival
13	Gender	Gender	Gender
14	Ambulance use	Ambulance use	Ambulance use

KTAS Korea Triage Acute Scale.