Table 2.

Prevalence of CKD stage 1–5 in women and men, MDRD and CG

	Women (n=12 929)	Men (n=25 062)	p Value
MDRD study formula	(n=12 043)	(n=23 317)
CKD stage 1	2400 (19.9)	7623 (32.7)	<0.001
CKD stage 2	5054 (42.0)	11 279 (48.4)
CKD stage 3	3891 (32.3)	3801 (16.3)
CKD stage 4	579 (4.8)	464 (2.0)
CKD stage 5	119 (1.0)	150 (0.6)
CG formula	(n=8794)	(n=17 792)
CKD stage 1	1675 (19.0)	7940 (44.6)	<0.001
CKD stage 2	2731 (31.1)	5964 (33.5)
CKD stage 3	3487 (39.7)	3366 (18.9)
CKD stage 4	789 (9.0)	428 (2.4)
CKD stage 5	112 (1.3)	94 (0.5)

Data presented as numbers (percentages) if not otherwise noticed.

CG, Cockcroft-Gault; CKD, chronic kidney disease; MDRD, Modification of Diet in Renal Disease.