The EKFC equation outperforms the CKD-EPI and CKiD equations for GFR estimation in adolescent and young adult kidney transplant patients.

Aim: This study evaluated the bias and accuracy of the CKD-EPI/CKiD and EKFC equations compared with the reference exogenous tracer-based assessment of glomerular filtration rate (GFR) in adult and pediatric patients according to their renal transplant status.

Methods: We assessed the bias and P accuracy of the CKD-EPI/CKiD and EKFC equations compared with iohexol-based GFR measurement.

Results: In the overall population (n = 59), the median age was 29 years (IQR, 16.