Estimated glomerular filtration rate (MDRD formula)
Name egfr_mdrd_gprd
Chapter Genitourinary system diseases/Renal failure
Definition
Estimated glomerular filtration rate using MDRD formula
Data Type Continuous
Data sources GPRD
Repeated Yes
Valid event date range 01/01/1900 - 25/03/2010
Agreed 08/11/2012 (Revision 1)
Implementation
IF crea_gprd > 30:

egfr_mdrd_gprd = 175 * (crea_gprd  * 0.011312 ) ^-1.154 * age^-0.203 * 1.212 [if black] * 0.742 [if sex=2 (Female)]

Reference: Levey AS et al. Using Standardized Serum Creatinine Values in the Modification of Diet in Renal Disease Study Equation for Estimating Glomerular Filtration Rate.  Ann Intern Med. 2006;145(4):247-254. doi:10.7326/0003-4819-145-4-200608150-00004
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Category (code) Clinical code Clinical term Datasource lookup
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