From: Urinary [TIMP-2]*[IGFBP7] for early prediction of acute kidney injury after coronary artery bypass surgery
AKI KDIGO stage
Number
Classification criterion for AKI stage
Increase of serum creatinine
Decrease of diuresis or RRT
1
13 (21.7 %)
8
5
2
1 (1.7 %)
0
3
5 (8.3 %)
All (1–3)
19 (31.7 %)
9
10