Table 2.

Criteria for defining pathologic items.

Item	Criteria for Pathologic Definition
Systolic blood pressure	<70 mmHg if age < 1 year
	OR
	<70 + (2 × age in years) if age > 1 year
	OR
	>the 90th percentile for age, gender, and height
Multiparametric blood gas analysis (MBG)	pH < 7.35 or >7.45
	OR
	blood glucose < 60 mg/dL or >200 mg/dL
	OR
	hemoglobin < anemia cutoff according to age
	OR
	serum sodium < 135 mmol/L or >145 mmol/L
Blood count	white blood cells < 5000/mm3 or >15,000/mm3
	OR
	platelets < 150,000/mm3
	OR
	hemoglobin < anemia cutoff according to age