Table 5 ICU- and hospital stay at different AKI stages

From: Acute kidney injury in septua- and octogenarians after cardiac surgery

Median ICU-stay [days]
RIFLE stage	Septuagenarians n = 299	Octogenarians n = 299	p-value
No AKI	1 (1; 2)	1 (1; 3)
Risk	2 (1; 3)	2 (1; 3)
Injury	5 (2; 8)	4 (1; 7)
Failure	14 (7; 30)	10 (3; 20)	0.32^A
Median hospital stay [days]
No AKI	11 (10; 14)	11 (9; 15)
Risk	12 (10; 15)	13 (11; 17)
Injury	14 (11; 19)	14 (11; 22)
Failure	30 (17; 35)	23 (17; 26)	0.33^A

^A - P-value is exemplarily shown. The differences between both age groups at other RIFLE stages also were not significant.

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