Table 2.

Discriminatory power of Waterlow score (cut-off ≥15) in predicting inpatient mortality, ICU admission and LOS

Outcome	Sensitivity (95% CI)	Specificity (95% CI)	Relative risk (95% CI)	Odds ratio (95% CI)	Likelihood ratio	p-value
Inpatient mortality	0.80	0.65	1.23	7.23	2.27	<0.0001
	(0.74–0.85)	(0.41–0.85)	(1.07–1.41)	(2.73–19.14)
ICU admission	0.95	0.17	1.62	3.68	1.14	0.011
	(0.90–0.98)	(0.09–0.29)	(1.00–2.62)	(1.41–9.58)
LOS >7 days	0.85	0.35	1.79	3.11	1.32	0.0003
	(0.78–0.90)	(0.27–0.45)	(1.25–2.57)	(1.70–5.71)

ICU = intensive care unit; LOS = length of stay; CI = confidence interval