Evaluation of Homogeneity Between eGFR Slopes Derived From Retrospective Clinical Practice Data and eGFR Slopes Derived From Prospectively Collected, Protocol-driven Data

This study is intended to investigate the usefulness of estimated glomerular filtration rate (eGFR) slopes derived from retrospective routine clinical practice data, compare those retrospective slopes with those generated in a prospective fashion and successively identify rapidly progressing chronic kidney disease (CKD) patients.