Correlation Between TPSM GFR and β-Trace Protein and Cystatin C GFRs for the 2 Levels of NAG
| NAG level | |||
| Method | ≤6.1 IU/L (n = 19) | >6.1 IU/L (n = 63) | P |
| Cystatin C | 0.957 (<0.0001) | 0.887 (<0.0001) | 0.0001 |
| β-trace protein | 0.801 (<0.0001) | 0.694 (<0.0001) | 0.0001 |
Data are r values followed by P values in parentheses.