Table 1.

Demographic characteristics of the study cohort.

	Preterm infants n=129	Term infants n=20
Gestational age (weeks)	27.1 (25.6–28.7)	39.8 (38.7–41.1)
Birthweight (grams)	920 (725–1175)	3530 (3045–3890)
Male	72 (55.8%)	9 (45.0%)
Multiple birth	27 (20.9%)	0
Caesarean section	72 (55.8%)	3 (15%)
Histological chorioamnionitis
yes	54 (41.8%)	N/A
unknown	17 (13.1%)
Late-onset sepsis
Confirmed	5 (3.8%)	0
Clinical	4 (3.1%)	0
Age at septic episode (days)	12 (9–17)	N/A

Data are expressed as median (IQR) or n (%), as appropriate.