TABLE 3.

This table highlights the performance of the Early Warning Scores. Section A of the table describes the performance of the original thresholds for the Early Warning Scores. NEWS has two recommended thresholds (5 and 7) and LDTEWS:NEWS also has two recommended thresholds (0.27 and 0.36). We measured the performance of 5 and 0.27 for NEWS and LDTEWS:NEWS respectively as those are the most commonly used thresholds. Section B outlines the performance of the accuracy‐optimised thresholds

The performance of the original thresholds (Section A)
Score	Threshold	Acc	Sen	Sps	Prs	AUROC
NEWS	5	0.75 (0.75–0.75)	0.66 (0.65–0.68)	0.75 (0.75–0.75)	0.02 (0.02–0.02)	0.79 (0.78–0.79)
CEWS	4	0.91 (0.91–0.91)	0.23 (0.21–0.24)	0.91 (0.91–0.91)	0.02 (0.02–0.02)	0.63 (0.61–0.64)
MCEWS	4	0.78 (0.78–0.78)	0.61 (0.59–0.62)	0.78 (0.78–0.78)	0.02 (0.02–0.02)	0.78 (0.77–0.79)
LDTEWS	0.33	0.73 (0.73–0.73)	0.41 (0.40–0.43)	0.74 (0.73–0.74)	0.01 (0.01–0.01)	0.62 (0.61–0.63)
LDTEWS:NEWS	0.27	0.84 (0.84–0.84)	0.52 (0.50–0.53)	0.84 (0.84–0.85)	0.03 (0.03–0.03)	0.80 (0.79–0.80)
The performance of the accuracy‐optimised thresholds (Section B)
Score	Threshold	Acc	Sen	Sps	Prs	AUROC
NEWS	4	0.62 (0.60–0.64)	0.77 (0.75–0.79)	0.62 (0.60–0.64)	0.02 (0.02–0.02)	0.79 (0.78–0.79)
CEWS	2	0.64 (0.62–0.65)	0.55 (0.52–0.57)	0.64 (0.62–0.65)	0.01 (0.01–0.01)	0.63 (0.61–0.64)
MCEWS	3	0.61 (0.59–0.63)	0.76 (0.74–0.79)	0.61 (0.59–0.62)	0.02 (0.02–0.02)	0.78 (0.77–0.79)
AEWS	4	0.60 (0.59–0.62)	0.66 (0.64–0.68)	0.60 (0.59–0.62)	0.01 (0.01–0.01)	0.68 (0.67–0.69)
LDTEWS	0.18 (0.17–0.18)	0.52 (0.52–0.53)	0.75 (0.74–0.76)	0.52 (0.52–0.53)	0.01 (0.01–0.01)	0.62 (0.61–0.63)
LDTEWS:NEWS	0.21 (0.20–0.21)	0.67 (0.66–0.68)	0.77 (0.76–0.79)	0.67 (0.66–0.68)	0.02 (0.02–0.02)	0.80 (0.79–0.80)