Table 3

Categorisation of parameters in the prediction models

	Model	Demographics	Vital signs	Interventions	Triage	Previous care contacts	Chief complaint	Drug use	Mobility and dependency	ED entrance	Professional assessment
Alam et al 28	NEWS		X	X
Brouns et al 26	MTS	X			X
Cameron et al 19 and Cameron et al 18	GAPS	X	X	X	X	X				X
Cameron et al 18	VAS										X
Di Bari et al 20 and Salvi et al 21	ISAR	X				X		X	X
Di Bari et al 20	SC	X				X		X
Grossmann et al 27	ESI				X
Kraaijvanger et al 24	Own model	X			X		X			X
Lucke et al 25	Adult model	X	X	X	X	X	X				X
Lucke et al 25	Older patient model	X	X	X	X	X	X				X
Noel et al 22	TNP										X
Noel et al 22	Own model	X			X		X			X
Noel et al 22	TNP+own model	X			X		X			X	X
Salvi et al 21	TRST					X		X	X		X
Zlotnik et al 23	Own model LR	X			X		X			X
Zlotnik et al 23	Own model ANN	X			X		X			X

Online supplemental appendix B.
ANN, Artificial Neural Network; AVPU, Alert, Verbal, Pain, Unresponsive; ESI, Emergency Severity Index; GAPS, Glasgow Admission Prediction Score; GP, general practitioner; ISAR, Identification of Seniors At Risk; LR, logistic regression; MTS, Manchester Triage System; NEWS, National Early Warning Score; SC, Silver Code; TNP, Triage Nurse Prediction; TRST, Triage Risk Screening Tool; VAS, Visual Analogue Scale.