In reply: McNeil draws attention to the detail in the correction factor we published in an attempt to assist users to “uncorrect” the eGFR derived from the MDRD (Modification of Diet in Renal Disease) equation used in calculating GFR from a serum creatinine concentration. Recalculating the eGFR to remove the adjustment for body surface area (BSA) in an individual is unnecessary except at extremes of body size.1
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- 1 Kidney Health Australia, Adelaide, SA.
- 2 Department of Biochemistry, St Vincent’s Hospital, Sydney, NSW.
- 3 Department of Nephrology, Princess Alexandra Hospital, Brisbane, QLD.
Correspondence: tim.mathew@kidney.org.au
- 1. Peters AM, Henderson BL, Lui D. Indexed glomerular filtration rate as a function of age and body size. Clin Sci (Lond) 2000; 98: 439-444.<eMJA full text>
- 2. Australian Creatinine Consensus Working Group. Chronic kidney disease and automatic reporting of estimated glomerular filtration rate: a position statement. Med J Aust 2005; 183: 138-141. <MJA full text>
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