Table 1.

Codified version of the discharge criteria for application to electronic health record data. Here the 15 criteria have been grouped into intuitive subsets and each assigned a test ID (‘R0’ to ‘B4’). According to the original specification, if all 15 criteria are met for a period of at least 4 hours the patient can be safely discharged

Test ID	Test name	Variable	Test condition
R0	Respiratory: airway	airway	airway patent
R1	Respiratory: Fio2	fio2	fio2≤0.6
R2	Respiratory: blood oxygen	spo2	spo2≥95 (%)
R3	Respiratory: bicarbonate	hco3	hco3≥19 (mmol/L)
R4	Respiratory: rate	resp (rate)	10≤resp≤30 (bpm)
C0	Cardiovascular: blood pressure	bp (systolic)	bp≥100 (mm Hg)
C1	Cardiovascular: heart rate	hr	60≤hour≤100 (bpm)
P	Pain	pain	0≤pain≤1
CNS	Central nervous system	gcs	gcs≥14
T	Temperature	temp	36≤temp≤37.5 (°C)
B0	Bloods: haemoglobin	haemoglobin	haemoglobin≥90 (g/L)
B1	Bloods: potassium	k	3.5≤k≤6.0 (mmol/L)
B2	Bloods: sodium	na	130≤na≤150 (mmol/L)
B3	Bloods: creatinine	creatinine	59≤creatinine≤104 (umol/L)
B4	Bloods: urea	bun	2.5≤bun≤7.8 (mmol/L)

CNS, central nervous system.