Table 5.

Risk Stratification of CSA‐AKI Development at Indicated Time Points

Sum Points	Preoperative	ICU Admittance	24 Hours After ICU Admittance
0 to 1 pts	Low	Low	Low
2 to 3 pts	Medium	Low	Low
4 pts	High	Low	Low
5 to 9 pts	High	Medium	Medium
≥10 pts	High	High	High

The distinction of low/medium/high was based on the incidence of CSA‐AKI in each sector; eg, the incidence of AKI in the sector of ≥10 pts in the 24 hours after ICU admittance column was 88.8%, which meant in the patients who scored ≥10 points at the time of 24 hours after admission, the incidence of CSA‐AKI was 88.8%. CSA‐AKI indicates cardiac surgery–associated acute kidney injury.