Table 2.

Comparison of clinical characteristics and feeding strategies

	FNEC (n = 40)	NEC (n = 166)	Z/χ2	p
Gestational age (week)	31.1 (28.6, 33.3)	31.7 (29.1, 34.7)	− 1.337	0.181
Birth weight (g)	1315 (927, 2065)	1545 (1192, 2102)	− 1.538	0.124
Gender—Male (%)	27 (67.5)	99 (59.6)	− 0.914	0.361
First feed day of life (h)	19.5 (10.0, 35.0)	22.0 (12.0, 35.3)	− 0.392	0.649
Breast milk (%)	4 (10.0)	25 (15.1)	− 0.887	0.375
Full feeds achieved (%)	12 (30.0)	71 (42.8)	− 1.503	0.133
Enteral feed volume before onset (ml/kg)	72.5 (12.0, 115.0)	104.0 (63.4, 130.0)	− 2.739	0.006