Table 4.

Accuracy (5%/10%) by equation according to different subgroups defined by GFR levels, gender, BMI, and age

	C	BM	F	JBM	N
GFR (ml/min per 1.73 m2)
90–130 (n=406)	34/63	46/76	47/75	46/75	38/67
90–100 (n=207)	37/67	47/79	51/80	48/77	39/68
100–110 (n=103)	34/64	46/76	46/74	45/76	38/71
110–120 (n=66)	32/61	44/76	41/74	44/73	39/67
120–130 (n=30)	20/43	37/52	10/53	37/57	23/53
>130 (n=32)	28/53	6/34	3/25	13/28	25/45
Gender
Men (n=250)	37/66	45/75	44/73	46/73	41/68
Women (n=188)	30/57	40/70	43/70	40/69	31/62
BMI (kg/m²)
≤20 (n=31)	19/42	23/55	26/48	29/55	19/52
20–30 (n=346)	35/65	43/75	45/75	44/74	38/68
≥30 (n=61)	34/61	49/67	46/67	46/66	36/62
Age (yr)
<40 (n=203)	31/57	36/68	39/68	37/67	33/58
≥40 (n=235)	37/68	48/77	48/75	49/75	40/73

BM, Bröchner-Mortensen; BMI, body mass index; C, Chantler; F, Fleming; GFR, glomerular filtration rate; JBM, Jodal-Bröchner-Mortensen; N, Ng.

All results are expressed in %.