Myocardial injury in infants ventilated on the paediatric intensive care unit: a case control study

Table 2 Characteristics of paediatric intensive care admissions below and above one month of age

	Neonates <1 month old (n = 22)	Older infants >1 month old (n = 25)	p value
Age (weeks)	0.3 (0.1–0.7)	20 (13–26)	<0.001^a
Weight (kg)	2.7 (2.2–3.2)	5.8 (4.0–8.0)	<0.001^a
Male (n (percent))	14 (64)	16 (64)	0.780^b
Surgical (n (percent))	17 (52)	6 (24)	<0.001^c
PIM (percent)	7.9 (3.2–10.8)	3.9 (1.5–7.5)	0.052^a
Volume resuscitation (ml/kg)	10 (0–30)	0 (0–20)	0.450^a
Systolic BP on admission (mmHg)	71 (62–77)	105 (85–120)	<0.001^a
Length of ventilation (days)	3 (2–9)	3 (2–5)	0.779^a

^aMann-Whitney test; ^bChi square-test; ^cFishers exact test. PIM, paediatric index of mortality. Except where specified, all values in parentheses represent interquartile ranges.

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