Table 2.

Clinical analysis between the EV group and non-EV group

Risk factor	Cases (N = 10) N (%)	Non-cases (N = 21) N (%)	P
Caesarean section	3 (30)	6 (28.6)	>0.05
Membrane rupture	2 (20)	4 (19.0)	>0.05
Prematurity	8 (80)	12 (57.1)	>0.05
Hospitalisation (before outbreak)	26.8 19.0	15.8 24.8	>0.05
Breastmilk	8 (80)	5 (23.8)	<0.05
GA (weeks)	31.7±4.0	34.0±4.9	>0.05
Antibiotics (before outbreak)	0 (0)	2 (9.5)	>0.05
PN	1 (10)	2 (9.5)	>0.05
Birth weight	1812.9±1025.1	2330.5±1087.5	>0.05

GA, gestational age; PN, parenteral nutrition.