Table 2.

Comparison of different tools for early detection of patient deterioration (relating to first-time alerts only).

Tools	Patients in whom an early risk alert was generated by the scoring system, n (%)		Time of detection prior to actual clinical deterioration (hours), n
	No deterioration (n=193)	Deteriorated (n=24)
National Early Warning Score	150 (77.7)	16 (67)	29
Airway, Breathing, Circulation, Neurology, and Other scorea	162 (83.9)	18 (75)	38
The clinical definition of deterioration by local medical staff (“wish list”)	193 (100)	24 (100)	40

^aA locally implemented version of the Airway, Breathing, Circulation, Disability, Exposure criteria for identification of patients' deterioration, as described in Multimedia Appendix 3.