Table 3.

Adjusted assessment of the interaction between center volume, age of admission and admission location on total cost. *NICU referent

		Lowest center volume tertile <50 cases/year		Middle center volume tertile 50–75 cases/year		Highest center volume tertile >75 cases/year
Age at admission		Adjusted difference	p-value	Adjusted difference	p-value	Adjusted difference	p-value
0–1 days	CICU	$87,790	<0.001	−$5,720	0.6	−$29,070	<0.001
2–7 days	CICU	$40,470	0.2	−$19,140	0.2	−$28,330	<0.001
8–14 days	CICU	$7,180	0.8	−$37,470	0.03	−$23,480	0.02
>15 days	CICU	−$1,050	>0.9	$17,000	0.4	−$32,310	0.008

NICU - Neonatal intensive care unit, CICU - cardiac intensive care unit