Table 3:

Summary of Costs for the First Year of Life

Cost Metric	Group	Unadjusted Cost, Mean (95% CI)	Cost Ratio (95% CI)	p value	Propensity Score Adjusted Cost, Mean (95% CI)	Cost Ratio (95% CI)	p value
Total Cost	PDA Stent N=104	$187,534 ($164,896 – $213,280)	0.74 (0.63 – 0.86)	<0.001	$215,825 ($190,644 – $244,333)	0.86 (0.75 – 1.00)	0.05
Total Cost	BT Shunt (ref) N=251	$254,469 ($234,246 – $276,439)	0.74 (0.63 – 0.86)	<0.001	$249,855 ($230,693 – $270,609)	0.86 (0.75 – 1.00)	0.05
Total Cost with Missing Cath Cost Imputed	PDA Stent N=104	$199,955 ($176,130 – $227,002)	0.78 (0.67 – 0.90)	0.001	$226,403 ($200,274 – $255,941)	0.90 (0.78 – 1.04)	0.149
Total Cost with Missing Cath Cost Imputed	BT Shunt (ref) N=251	$257,022 ($236,867 – $278,892)	0.78 (0.67 – 0.90)	0.001	$252,072 ($232,955 – $272,759)	0.90 (0.78 – 1.04)	0.149
Clinical	PDA Stent N=104	$25,712 ($21,483 – $30,772)	0.84 (0.68 – 1.04)	0.11	$27,855 ($23,305 – $33,293)	0.94 (0.76 – 1.16)	0.57
Clinical	BT Shunt (ref) N=251	$30,652 ($27,304 – $34,410)	0.84 (0.68 – 1.04)	0.11	$29,635 ($26,424 – $33,237)	0.94 (0.76 – 1.16)	0.57
Imaging	PDA Stent N=104	$21,380 ($19,072 – $23,968)	1.22 (1.06 – 1.39)	0.005	$23,014 ($20,529 – $25,798)	1.27 (1.11 – 1.46)	<0.001
Imaging	BT Shunt (ref) N=251	$17,590 ($16,343 – $18,932)	1.22 (1.06 – 1.39)	0.005	$18,109 ($16,827 – $19,490)	1.27 (1.11 – 1.46)	<0.001
Lab	PDA Stent N=104	$24,520 ($21,345 – $28,168)	0.66 (0.56 – 0.78)	<0.001	$28,752 ($25,140 – $32,882)	0.78 (0.67 – 0.92)	0.002
Lab	BT Shunt (ref) N=251	$37,102 ($33,934 – $40,567)	0.66 (0.56 – 0.78)	<0.001	$36,854 ($33,805 – $40,177)	0.78 (0.67 – 0.92)	0.002
Pharmacy	PDA Stent N=104	$15,180 ($12,902 – $17,861)	0.74 (0.61 – 0.89)	0.002	$17,561 ($14,995 – $20,566)	0.85 (0.71 – 1.03)	0.09
Pharmacy	BT Shunt (ref) N=251	$20,585 ($18,539 – $22,856)	0.74 (0.61 – 0.89)	0.002	$20,642 ($18,648 – $22,849)	0.85 (0.71 – 1.03)	0.09
Supply	PDA Stent N=104	$15,795 ($13,112 – $19,027)	1.0 (0.80 – 1.25)	1.0	$18,132 ($15,076 – $21,807)	1.25 (1.01 – 1.56)	0.04
Supply	BT Shunt (ref) N=251	$15,789 ($14,006 – $17,798)	1.0 (0.80 – 1.25)	1.0	$14,469 ($12,849 – $16,293)	1.25 (1.01 – 1.56)	0.04
Room	PDA Stent N=104	$72,370 ($63,157 – $82,927)	0.63 (0.53 – 0.74)	<0.001	$86,810 ($76,239 – $98,848)	0.77 (0.66 – 0.90)	<0.001
Room	BT Shunt (ref) N=251	$115,207 ($105,539 – $125,760)	0.63 (0.53 – 0.74)	<0.001	$112,989 ($103,935 – $122,831)	0.77 (0.66 – 0.90)	<0.001

Cost is reported in 2016 US $. BT = Blalock-Taussig. PDA = patent ductus arteriosus. Cost Ratio is presented with BT shunt as the reference group.