Table 4.

Comparisons of increased respiratory support with other variables

Parameter		Need for increased respiratory support	P
		No	Yes
Gestational age at birth, mean ± SD [weeks]	27.1 ± 1.3	25.8 ± 1.4	< 0.01a
Birth weight, mean ± SD [g]	1007 ± 244	831 ± 210	0.03a
Weight at MR acquisition, mean ± SD [g]	1146 ± 210	1091 ± 148	NSa
Temperature drop after MRI procedure [°C]	0.5 ± 0.6	0.5 ± 0.5	NSa
Male gender [n]	21	9	NSb
Mode of respiratory support during MRI [n]			0.03b
Mild respiratory support	32	5
Moderate respiratory support	8	7

NS not significant

^aPearson’s T-test

^bFisher’s exact test