Table 3 Relationship between KDIGO stage and risk categories of the Cleveland tool
From: Validating a scoring tool to predict acute kidney injury (AKI) following cardiac surgery
No AKI (N = 1980) | KDIGO stage 1 (N = 142) | KDIGO stage 2 (N = 60) | KDIGO stage 3 (N = 134) | |
|---|---|---|---|---|
Overall mean (SD) risk score | 1.61 (1.59) | 2.34* (1.68) | 2.35* (1.66) | 3.69*,& (2.07) |
Cleveland risk category | N (%) | N (%) | N (%) | N (%) |
Low risk (0–2; n = 1659) | 1503 (90.6%) | 82 (4.9%) | 32 (1.9%) | 42 (2.5%) |
Intermediate risk (3–5; n = 576) | 429 (74.4%) | 55 (9.5%) | 25 (4.3%) | 68 (11.8%) |
High risk (6–8; n = 75) | 47 (59.5%) | 5 (6.3%) | 3 (3.8%) | 24 (30.4%) |
Very high risk (≥9; n = 1) | 1 (100%) | 0 | 0 | 0 |