GFR Estimation Using β-Trace Protein and β2-Microglobulin in CKD

β-Trace protein (BTP) and β2-microglobulin (B2M) are novel glomerular filtration markers that have stronger associations with adverse outcomes than creatinine. Comparisons of BTP and B2M to creatinine and cystatin C are limited by the absence of rigorously developed glomerular filtration rate (GFR) estimating equations for the novel markers.Study of diagnostic test accuracy.Pooled database of 3 populations with chronic kidney disease (CKD) with...