Comparison of Predictive Powers for Mortality between Systemic Vascular Resistance Index and Serum Lactate in Children with Persistent Catecholamine-Resistant Shock

Table 2

Best predictive power for different cut-off points of systemic vascular resistance index in persistent catecholamine-resistant shock at each 6-hour interval within the first 24 hours.

Time (hours)	SVRI (dyn·s·cm^-5·m^2)	Sensitivity	Specificity	LR^+	LR^-	Youden index
0	1140	0.8	0.89	7.2	0.23	0.7
6	1011	0.7	0.91	7.7	0.33	0.6
12	977	0.8	0.9	8	0.22	0.7
18	987	0.75	0.9	7.5	0.28	0.7
24	1284	0.75	0.88	6.8	0.28	0.6

SVRI: systemic vascular resistance index; LR⁺: positive likelihood ratio; LR^-: negative likelihood ratio.