Table 2. Cox Regression Analysis: Independent Predictors of Subject Age at Reaching Full Enteral Feeds and Time from Abdominal Wall Closure to Full Enteral Feeds.

	Age at Full Enteral Feeds		Time From Closure to Full Enteral Feeds
Variable	HR (95%CI)	P-Value	HR (95%CI)	P-Value
Transport Time (per 60 minute increase)	1.07 (0.98, 1.17)	0.15	1.06 (0.87, 1.31)	0.15
Stabilization Time (per 60 minute increase)	1.11 (0.90, 1.36)	0.32	1.07 (0.98,1.16)	0.55
Closure Time (per 12 hour increase)	0.95 (0.92, 0.98)	0.005	0.96 (0.93, 1.00)	0.03
Prenatal GI Complication (Yes vs. No)	0.17 (0.07, 0.44)	0.002	0.19 (0.08,0.48)	0.0005
Postnatal GI Complication (Yes vs. No)	0.16 (0.078, 0.32)	<0.0001	0.17 (0.86, 0.35)	<0.0001
Amniotic Fluid Character (vs. Clear)
Bloody	0.23 (0.08, 0.72)	0.01	0.24 (0.08, 0.75)	0.0005
Meconium-Stained	0.41 (0.24, 0.71)	0.002	0.41 (0.24, 0.71)	0.001
Maternal Complications (Yes vs. No)	2.30 (1.27, 4.18)	0.006	2.21 (1.22, 3.98)	0.01

HR: Hazard ratio, larger ratio indicated higher likelihood of younger age at or time from abdominal wall closure to full enteral feeds. CI: Confidence interval. GI: Gastrointestinal