Pediatric Calculator

Revised Pediatric GFR Schwartz Formula

by Stephen Z. Fadem, M.D., FACP, FASN

This formula has not been validated outside of the range of GFR of 15-75 ml/min per 1.73m2.


Cystatin C:
Creatinine:
Height:
Age: years
BUN:
Gender:
GFR


HEIGHT
CREATININE
CYSTATIN C
BUN
GENDER
AGE
SOURCE: Schwartz, GJ, Munoz, A, Schneider, MF, Mak, RH, Kaskel, F, Warady, BA & Furth, SL: New Equations to Estimate GFR in Children with CKD. J Am Soc Nephrol, Mar;20(3):629-37,2009.

FORMULA

GFR = 39.1*[ht/Scr].516
*[1.8/cystatin C].0.294
*[30/BUN]0.169
*[ht/1.4]0.188
*1.099(if male)

  • GFR= Glomerular filtration rate in cc/min/1.73m2
  • Ht = Height in meters
  • Cystatin C = mg/L
  • Creatinine = mg/dL
  • BUN = mg/dL
© Stephen Z. Fadem, M.D. 2009-2010. All rights reserved. No part of this code can be reproduced without written permission of the author.