Table 2.

EOS care utilization and associated costs in at-risk newborns with or without empirical antibiotics for suspected EOS

	Treated with AB (n = 150)	Not treated with AB (n = 1558)	P*
	Mean (SD)	Mean (SD)
Length of stay, in days	7.37 (4.88)	2.99 (3.66)	< 0.001
Number of EOS-related laboratory tests	11.2 (4.71)	1.11 (2.99)	< 0.001
No. of days with AB for suspected EOS	5.29 (2.54)	0.00 (0.00)	< 0.001
Costs associated with duration of hospital stay	5492 (3587)	2285 (2655)	< 0.001
Costs associated with EOS-related laboratory tests	194 (117)	15.3 (47.9)	< 0.001
Cost associated with antibiotic treatment for suspected EOS	14.3 (7.46)	0.00 (0.00)	< 0.001
Combined costs	5700 (3639)	2300 (2684)	< 0.001

*Welch two-sample t-test