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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Am J Kidney Dis. 2012 Sep 28;60(6):1002–1011. doi: 10.1053/j.ajkd.2012.07.018

Box 1.

CKiD Estimating Equations

Complete estimating equation
eGFR (ml/min/1.73m2) = 39.1[height (m)/SCr (mg/dl)]0.516 * [1.8/SCysC (mg/L)]0.294 * [30/SUN (mg/dl )]0.169 × [1.099]male × [height (m)/1.4]0.188
Bedside formula
eGFR (ml/min/1.73 m2) =[0.413 * Height (cm)] / [SCr (mg/dl)]

Abbreviations: CKiD, CKD in Children; eGFR, estimated glomerular filtration rate; SCr, serum creatinine; SCysC, serum cystatin C; SUN, serum urea nitrogen