Table 3.

Discriminative value of Shock Index (continuous) for serious illness, stratified for age n=5622

	SBI	IBI	ILSI	ICU admission
	AUC (95% CI)	AUC (95% CI)	AUC (95% CI)	AUC (95% CI)
Shock Index (continuous) stratified for age
<1 year, n=801	0.66 (0.60 to 0.72)	0.71 (0.56 to 0.85)	0.70 (0.60 to 0.80)	0.73 (0.59 to 0.87)
1–5 years, n=2395	0.54 (0.49 to 0.59)	0.56 (0.42 to 0.70)	0.57 (0.51 to 0.64)	0.58 (0.47 to 0.68)
5–10 years, n=1330	0.56 (0.50 to 0.62)	0.68 (0.50 to 0.86)	0.61 (0.52 to 0.69)	0.52 (0.36 to 0.69)
>10 years, n=1096	0.55 (0.50 to 0.60)	0.74 (0.63 to 0.85)	0.71 (0.64 to 0.79)	0.72 (0.45 to 0.98)

AUC, area under the curve; IBI, invasive bacterial infection; ICU, intensive care unit; ILSI, immediate life-saving intervention; SBI, serious bacterial infection.