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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) 0.32A
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) 0.33A
  1. A - P-value is exemplarily shown. The differences between both age groups at other RIFLE stages also were not significant.