Age (years)	Abbreviated MDRD study equation†: serum creatinine level, mg per dL (μmol per L)				Cockcroft-Gault equation†: serum creatinine level, mg per dL (μmol per L)
	Whites		Blacks
	Men	Women	Men	Women	Men	Women
30	1.47 (130)	1.13 (100)	1.73 (153)	1.34 (118)	1.83 (162)	1.56 (138)
40	1.39 (123)	1.08 (95)	1.65 (146)	1.27 (112)	1.67 (148)	1.42 (126)
50	1.34 (118)	1.03 (91)	1.58 (140)	1.22 (108)	1.50 (133)	1.28 (113)
60	1.30 (115)	1.00 (88)	1.53 (135)	1.18 (104)	1.33 (118)	1.13 (100)
70	1.26 (111)	0.97 (86)	1.49 (132)	1.15 (102)	1.17 (103)	0.99 (88)
80	1.23 (109)	0.95 (84)	1.46 (129)	1.12 (99)	1.00 (88)	0.85 (75)