Percentages of CKD stage misclassification by original and modified equations in CKD stages 1 and 2a
Classification Based on: | CKD Stage Based on rGFR | |
---|---|---|
1 | 2 | |
Equation 1 | ||
CKD stage 1 | 28.6 | 0 |
CKD stage 2 | 71.4 | 40 |
CKD stage 3 | 0 | 60 |
Equation 2 | ||
CKD stage 1 | 26.2 | 1.7 |
CKD stage 2 | 73.8 | 31.7 |
CKD stage 3 | 0 | 66.6 |
Equation 3 | ||
CKD stage 1 | 52.4 | 8.3 |
CKD stage 2 | 47.6 | 70 |
CKD stage 3 | 0 | 21.7 |
Equation 4 | ||
CKD stage 1 | 54.8 | 13.3 |
CKD stage 2 | 45.2 | 68.3 |
CKD stage 3 | 0 | 18.4 |
Equation 5 | ||
CKD stage 1 | 45.2 | 10 |
CKD stage 2 | 54.8 | 68.3 |
CKD stage 3 | 0 | 21.7 |
Equation 6 | ||
CKD stage 1 | 47.6 | 11.7 |
CKD stage 2 | 52.4 | 68.3 |
CKD stage 3 | 0 | 20 |
↵a In CKD stage 1, equations 3 through 6 showed lower percentages of misclassification than equations 1 and 2 (P < 0.05 for equations 3 and 4; NS for equations 5 and 6). In CKD stage 2, equations 3 through 6 achieved lower percentages of misclassification than equations 1 and 2 (P < 0.05 for all).