Table 2 Agreement between different kidney function estimators in diagnosing CKD stage 3–5 (kappa statistic and 95% confidence interval)
Estimator 1 | Estimator 2 | Men | Women | Total |
|---|---|---|---|---|
Cockcroft-Gault | MDRD corrected | 0.27 (0.13-0.40) | 0.60 (0.52-0.68) | 0.51 (0.44-0.58) |
MDRD | 0.57 (0.44-0.70) | 0.52 (0.45-0.58) | 0.53 (0.47-0.59) | |
CKD-EPI corrected | 0.35 (0.20-0.47) | 0.66 (0.58-0.74) | 0.57 (0.49-0.64) | |
CKD-EPI | 0.64 (0.52-0.76) | 0.65 (0.59-0.72) | 0.65 (0.59-0.71) | |
MDRD corrected | MDRD | 0.46 (0.30-0.60) | 0.41 (0.34-0.47) | 0.42 (0.36-0.48) |
CKD-EPI corrected | 0.87 (0.71-0.97) | 0.92 (0.87-0.96) | 0.91 (0.86-0.95) | |
CKD-EPI | 0.53 (0.34-0.70) | 0.57 (0.49-0.65) | 0.57 (0.50-0.64) | |
MDRD | CKD-EPI corrected | 0.51 (0.35-0.64) | 0.38 (0.32-0.45) | 0.41 (0.34-0.47 |
CKD-EPI | 0.85 (0.74-0.93) | 0.78 (0.72-0.82) | 0.79 (0.74-0.83) | |
CKD-EPI corrected | CKD-EPI | 0.58 (0.43-0.73) | 0.54 (0.46-0.61) | 0.55 (0.48-0.62) |