Table 3.

Error by level of eGFR (eGFR − GFR/GFR) for various eGFR formulas

FormulaSchwartz eGFRCystatin C eGFRBTP eGFR
Median error+12.0−9.0+5.0
25th percentile error−4.0−21.0−16.0
75th percentile error+24.0+6.0+25.0