Table 3.

Three-Way Classification of Kidney Function Equations: Comparison of Chronic Kidney Disease Epidemiology Collaboration and Modification of Diet in Renal Disease Equations, With Adjustment for Body Surface Area

	Participants, No. (%)
	eGFR by MDRD with BSA Adjustment, mL/min
	<60		60 to <90			≥90
	CrCl by CG, mL/min		CrCl by CG, mL/min			CrCl by CG mL/min
eGFR by CKD-EPI With BSA Adjustment, mL/min	<60	60 to <90	<60	60 to <90	≥90	<60	60 to <90	≥90	All Participants
<60	37 (0.5)	48 (0.6)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	85 (1.1)
60 to <90	19 (0.2)	91 (1.2)	85 (1.1)	1660 (21.4)	308 (4.0)	0 (0)	32 (0.4)	5 (0.1)	2200 (28.4)
≥90	0 (0)	0 (0)	1 (0.0)	349 (4.5)	539 (6.9)	1 (0.0)	609 (7.8)	3975 (51.2)	5474 (70.6)

Abbreviations: BSA, body surface area; CG, Cockcroft-Gault; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; CrCl, creatinine clearance; eGFR, estimated glomerular filtration rate; MDRD, Modification of Diet in Renal Disease.