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Table 3 Performance of GFR estimating equations as compared to measured GFR by urinary inulin clearance

From: Existing creatinine-based equations overestimate glomerular filtration rate in Indians

eGFR equation Bias (mGFR-eGFR) (ml/min/1.73m2) 95% Limits of agreement (ml/min/1.73m2) Precision (95% CI) (ml/min/1.73m2) Accuracy
RMSE (ml/min/1.73m2) P30 (%)
CKD-EPICr −24.92 ± 17.17 −58.57 to 8.73 −27.90 to −21.95 30.22 22.3
CKD-EPI (PK) −16.84 ± 15.39 −47.00 to 13.32 −19.52 to −14.17 47.72 39.2
CKD-EPI (JAP) −10.62 ± 13.07 −36.22 to 15.02 −12.87 to −8.33 16.79 51.5
MDRD −26.13 ± 22.74 −73.95 to 28.47 −30.09 to −22.17 34.63 25.4
CKD-EPICys −3.53 ± 14.70 −32.34 to 25.28 −0.608 to −0.98 15.06 74.6
  1. CKD-EPI Chronic Kidney Disease Epidemiology Collaboration, CI confidence interval, Cys cystatin C, eGFR estimated glomerular filtration rate, F female, JAP Japan, M male, MDRD Modification of Diet in Renal Disease, mGFR measured GFR, PK Pakistan, P 30 percentage of participants with eGFR within ±30% of mGFR, RMSE root mean square error