Table 2.

Diagnostic metrics of NEWS2, MEWS and qSOFA score triggers for serious event within 24 hours

Metric	NEWS2	MEWS	qSOFA
Sensitivity	0.98 (0.96–1.00)	0.39 (0.31–0.47)^*	0.32 (0.24–0.39)^*
Specificity	0.28 (0.21–0.35)	0.71 (0.64–0.78)^*	0.77 (0.71–0.84)^*
Positive predictive value	0.53 (0.47–0.59)	0.53 (0.43–0.62)^ns	0.53 (0.42–0.64)^ns
Negative predictive value	0.96 (0.90–1.00)	0.59 (0.52–0.66)^*	0.58 (0.51–0.65)^*
Positive likelihood ratio	1.37 (1.24–1.51)	1.36 (0.98–1.87)^ns	1.39 (0.95–2.03)^ns
Negative likelihood ratio	0.05 (0.01–0.22)	0.86 (0.72–1.01)^*	0.89 (0.77–1.02)^*