Diagnostic significance of serum levels of serum amyloid A, procalcitonin, and high-mobility group box 1 in identifying necrotising enterocolitis in newborns

Table 1 Comparison of baseline data between the two groups, n (%)

Parameter	Healthy newborns (n = 50)	NEC group (n = 48)	t/χ2	P value
Gender
Male	25 (50.00)	23 (47.92)	0.000	0.997
Female	25 (50.00)	25 (52.08)
Age (d)
≥ 6	23 (46.00)	24 (50.00)	0.038	0.846
< 6	27 (54.00)	24 (50.00)
Body mass (g)
≥ 2500	20 (40.00)	11 (22.92)	2.562	0.109
< 2500	30 (60.00)	37 (77.08)
Obstetric asphyxia during childbirth
Yes	22 (44.00)	30 (62.50)	2.663	0.103
No	28 (56.00)	18 (37.50)
Delivery method
Natural childbirth	25 (50.00)	23 (47.92)	0.000	0.997
Caesarean section	25 (50.00)	25 (52.08)

NEC: Necrotising enterocolitis.