Table 4.

Outcome measure by risk category

Factor	Overall	Low Risk	Medium Risk	High Risk	p-value
N	1821	508	1010	303
Survival					<0.001
30-day	0.98	0.99	0.98	0.97
90-day	0.96	0.97	0.96	0.93
1-year	0.91	0.94	0.91	0.86
3-year	0.74	0.79	0.73	0.67
Mechanical Ventilation at 72 Hours					<0.001
No	1315 (72.2%)	396 (78.0%)	730 (72.3%)	189 (62.4%)
Unknown	4 (0.2%)	2 (0.4%)	2 (0.2%)	0
Yes	502 (27.6%)	110 (21.7%)	278 (27.5%)	114 (37.6%)
ECMO at 72 Hours					<0.001
No	1724 (94.7%)	492 (96.9%)	963 (95.4%)	269 (88.8%)
Unknown	4 (0.2%)	1 (0.2%)	3 (0.3%)	0
Yes	92 (5.1%)	14 (2.8%)	44 (4.4%)	34 (11.2%)
Missing	1 (0.1%)	1 (0.2%)	0	0
iNO at 72 Hours					0.417
No	1662 (91.3%)	471 (92.7%)	919 (91.0%)	272 (89.8%)
Unknown	11 (0.06%)	3 (0.6%)	5 (0.5%)	3 (1.0%)
Yes	147 (8.1%)	33 (6.5%)	86 (8.5%)	28 (9.2%)
Missing	1 (0.05%)	1 (0.2%)	0	0
Length of Stay					<0.001
Overall	20 [13; 37]	16 [11; 27.5]	21 [14; 37]	29 [18; 50]
Single	15 [11; 27]	12.5 [10; 20]	15 [11; 25]	25 [14; 41]
Bilateral	22 [15; 40]	17 [12; 30]	23 [15; 40]	29 [18; 53]
Disposition					<0.001
Home	735 (40.4%)	242 (47.6%)	397 (39.3%)	96 (31.7%)
Short Term Hospital	18 (1.0%)	7 (1.4%)	11 (1.1%)	0
Skilled Nursing Facility	375 (20.6%)	75 (14.8%)	206 (20.4%)	94 (31.0%)
Home Health Care	623 (34.2%)	176 (34.7%)	355 (35.2%)	92 (30.4%)
Died	70 (3.8%)	8 (1.6%)	41 (4.1%)	21 (6.9%)
Total Charges					<0.001
Overall	$653,024 [454,335; 1,125,028]	$549,593 [397,047; 911,928]	$665,666 [463,642; 1,161,165]	$816,576 [553,376; 1,261,809]
Single	$542,419 [386,252; 971,431]	$504,809 [356,636; 906,914.5]	$502,071 [378,923; 960,064]	$735,919 [526,755; 1,463,928]
Bilateral	$685,880 [483,949; 1,162,435]	$566,470 [414,477; 941,223]	$707,612 [502,246.5; 1,251,858]	$830,990 [574,395; 1,232,098]