BACKGROUND
A single time-point fibroblast growth factor-23 (FGF23) level is a strong, well-established risk factor for clinical events in chronic kidney disease (CKD). This study investigated whether repeated measurements of FGF23 after 2 years, allowing the calculation of time-averaged FGF23 and the rate of change in FGF23, provided a better prediction of clinical events in CKD than a single t...
