Table 4.

Outcomes of GBS EOS episodes based on peripartum antibiotic received for full term neonates with GBS positive mothers.

	First-line antibiotics (n = 51)	Second-line antibiotics (n = 42)	No antibiotics (n = 122)	p-value
Postnatal age at positive GBS culture, median [IQR], days	0 [0, 0]	0 [0, 0]	0 [0, 1]	.004
Pressor use in first week of life	5 (9.8)	4 (9.5)	14 (11.5)	.91
Invasive ventilation in first week of life	9 (17.6)	9 (21.4)	24 (19.7)	.90
Days of invasive ventilation, median [IQR]	0 [0, 0]	0 (0, 0)	0 [0, 0]	.94
Percent days with invasive ventilation, median [IQR]	0 [0, 0]	0 (0, 0)	0 [0, 0]	.87
Days on supplemental oxygen, median [IQR]	1 [0, 3]	0 [0, 2]	1 [0, 3]	.36
Percent days with supplemental oxygen, median [IQR]	9 [0, 26]	0 [0, 18]	8 [0, 20]	.37
Length of stay (days), median [IQR]	11 [10, 12]	11.5 [11, 14]	12 [11, 15]	0.06

Data are presented as n (%) unless otherwise specified.

GBS, Group B Streptococcus; EOS, Early-Onset Sepsis.

Chi square and Kruskal-Wallis tests were used to assess for differences across groups by type of antibiotic received for each variable.