Both eGFR ( MDRD ) and eGFR ( CKD-EPI-Creat + CysC ) had high percentage ( 94.4 % and 92.6 % , respectively ) of estimates falling within 30 % of mGFR versus estimates by eGFR ( CKD-EPI-Creat ) and eGFR ( CKD-EPI-CysC ) equations ( 87.2 % and 85.1 % , respectively ) .