Duration of Intrapartum Antibiotics for Group B Streptococcus on the Diagnosis of Clinical Neonatal Sepsis

Table 1

Frequency of maternal and neonatal characteristics by the duration of exposure to intrapartum antibiotic therapy for group B streptococcus.

	<4 hours of antibiotics	≥4 hours of antibiotics	𝑃 value
	N = 1,149	N = 3,633
Maternal age (years)	30.1±6.2	29.4±7.4	<.01
Race			.20
White	547 (48)	1,828 (50)
Black	233 (20)	730 (20)
Hispanic	251 (22)	698 (19)
Asian	64 (6)	167 (5)
Other	54 (5)	210 (6)
EGA at delivery (weeks)	39.0+1.0	39.1+1.0	1.0
Duration of ROM (hours)	2.8±3.2	6.8±5.7	<.01
% with ≥18 hours of ROM	0	11 (0.3)
Duration of antibiotics (hours)	2.5±1.1	8.8±4.8	<.01
Birth weight (grams)	3,341 ± 454	3,404 ± 433	<.01
NICU nursery admission	11 (1)	15 (0.4)	.04
Length of infant stay	2.6±4.0	2.5±3.5	.99

Data are mean ± standard deviation or 𝑛 (%).
EGA: estimated gestational age; ROM: rupture of membranes; NICU: neonatal intensive care unit.