Table 3.

Nondiabetic adults in NHANES III 95% confidence intervals (CI) for weighted distribution of level of GFR^a

GFR Category (ml/min per 1.73m2)	20 to 29 yr	30 to 39 yr	40 to 49 yr	50 to 59 yr	60 to 69 yr	70 to 79 yr	≥80 yr	Total
^a All values are % within race-gender-age stratum. GFR is categorized according to the MDRD equation and stratified by age (in decades), race, and gender. Point estimates for this analysis are shown in Figure 1.
≥80
white male	75 to 83	54 to 63	31 to 42	18 to 25	11 to 17	6.2 to 11	1.4 to 4.7	43 to 48
white female	61 to 69	41 to 49	19 to 26	9.3 to 17	4.7 to 9.7	1.6 to 4.0	0.7 to 3.7	30 to 34
black male	89 to 94	74 to 82	60 to 72	42 to 56	30 to 44	13 to 33	3.8 to 35	69 to 73
black female	88 to 94	74 to 82	54 to 65	27 to 42	14 to 27	7.6 to 22	0 to 8.0	63 to 68
60 to 79
white male	17 to 24	36 to 45	55 to 65	61 to 69	55 to 62	44 to 54	28 to 42	43 to 47
white female	30 to 39	46 to 55	61 to 69	59 to 69	49 to 57	35 to 45	21 to 30	48 to 52
black male	5.4 to 10	17 to 25	26 to 39	38 to 52	38 to 54	36 to 54	29 to 63	23 to 27
black female	6.0 to 11	17 to 24	34 to 43	51 to 65	40 to 60	38 to 60	20 to 48	26 to 30
30 to 59
white male	0 to 1.2	0 to 1.4	2.0 to 5.4	9.2 to 18	23 to 30	35 to 46	54 to 68	8 to 10
white female	0.1 to 1.3	2.3 to 5.3	8.7 to 16	19 to 27	35 to 44	51 to 61	64 to 72	15 to 20
black male	0 to 1.1	0 to 0.7	0.3 to 2.5	2.9 to 8.0	11 to 22	20 to 41	21 to 49	3.2 to 4.6
black female	0 to 0.2	0.1 to 1.8	0.6 to 2.9	3.1 to 11	20 to 36	26 to 48	43 to 68	4.8 to 7.0
<30
white male	0 to 0	0 to 0	0 to 0	0 to 0.1	0 to 1.3	0.2 to 3.5	0.5 to 2.2	0.1 to 0.3
white female	0 to 0	0 to 0.1	0 to 0	0 to 0	0.1 to 1.5	0 to 1.6	2.0 to 5.7	0.1 to 0.5
black male	0 to 0	0 to 0.7	0 to 0	0 to 1.9	0 to 2.5	0 to 3.3	0 to 0	0 to 0.5
black female	0 to 0.4	0 to 1.0	0 to 1.4	0 to 0	0.1 to 2.7	0 to 0	1.9 to 15	0.2 to 0.8