Table 1. Subject demographics and other pertinent characteristics.

Ninety-one subjects were enrolled; 7 subjects were septic, and 11 met SIRS criteria. No subjects had hyperbilirubinemia ≥ 30mg/dl, though 73% received phototherapy. No subjects had meningitis or seizures. Only 3% had any kind of TSH abnormality. Only gentamicin exposure and sepsis/SIRS status were used for analysis with DPOAE referral.

	Range [Lower limit, Upper	Mean	Number
Gestational age (weeks)	[24.14, 36.9]	33 (2.96)
Gender: male/female			54 (59%) /
Length of stay in NICU (days)	[3, 215]	34.7
Race:
White/Caucasian			70 (77%)
Hispanic/Latino/Pacific Islander			21 (23%)
Birth weight (kg)	[0.61, 3.255]	1.87
Birth weight < 1.5kg			25 (27%)
APGAR Score (1 min):
≤6			40 (44%)
≥7			51 (56%)
APGAR Score (5 min):
≤6			21 (23%)
≥7			70 (77%)
Hyperbilirubinemia			73 (80%)
>30mg/dl			0 (0%)
Required phototherapy			67 (73%)
Required exchange transfusion			0 (0%)
Subjects with signs of			18 (20%)
Sepsis			7 (8%)
Meet SIRS criteria			11 (12%)
Gentamicin exposure			74 (81%)
<4days			71 (78%)
≥4 days			20 (22%)
Vancomycin exposure			16 (18%)
Loop diuretic exposure			13 (14%)
Meningitis			0 (0%)
Seizures			0 (0%)
TSH Abnormality			3 (3%)