Table 1.

Sample characteristics

Characteristics	Values
Gestational age (weeks)	32.7 ± 4.2
Male gender	89 (58.5)
Birth weight (g)	1,903.1 ± 846.9
Length of hospital stay (days)	18.1 ± 20.3
Cesarean delivery	101 (66.5)
Time of membrane rupture
At delivery	110 (72.4)
< 18 hours	24 (15.8)
> 18 hours	18 (11.8)
Apgar 1 minute	6.5 ± 2.3
Apgar 5 minutes	8.1 ± 1.4
Diagnostic hypothesis
Early sepsis	101 (66.5)
Early sepsis/late sepsis	20 (13.2)
Early sepsis/pneumonia	8 (5.3)
Late sepsis	8 (5.3)
Pneumonia	7 (4.6)
Other	8 (5.3)
Positive blood cultures	16 (10.5)
Mechanical ventilation	94 (61.8)
Maternal risk factor	109 (71.7)
Death	15 (9.9)

Results are expressed as the number (%) or mean ± standard deviation.