Table 2.

Post-Operative Complications During Hospitalization for Cardiac Surgery by Severe AKI

Complications	Severe AKI	No Severe AKI	P-value
Clinical AKI, n (%)
Increase > 50% or >0.3 mg/dL	37 (100.0)	293 (31.7)	<0.001
Acute dialysis	9 (24.3)	0 (0.0)	<0.001
Non-renal complications, n (%)
none	19 (51.4)	572 (62.0)	<0.001
1 or 2	6 (16.2)	283 (30.7)
>2	12 (32.4)	68 (7.4)
Oliguria on post-operative day 1, n (%)	0 (0.0)	11 (1.2)	0.6
Mechanical ventilation > 48 hours, n (%)	15 (40.5)	19 (2.1)	<0.001
ICU length of stay (days), median (IQR)	5 (3–17)	2 (1–3)	<0.001
Hospital length of stay (days), median (IQR)	17 (8–27)	6 (5–8)	<0.001