Table 1.

Distribution of demographic characteristics of KEEP participants with diabetes stratified by CKD stage and awareness

Characteristics	Diabetics, %
	all CKD			stage 1–2 CKD			stage 3–5 CKD
	all (7,853)	unaware (7,117)	aware (736)	all (2,548)	unaware (2,394)	aware (154)	all (5,305)	unaware (4,723)	aware (582)
Age
18–30 years	1.2	1.2	1.2	3.3	3.4	2.6	0.2	0.1	0.9
31–45 years	7.0	7.0	7.3	14.6	14.5	14.9	3.4	3.1	5.3
46–60 years	27.3	27.4	26.1	38.2	38.3	37.7	22.0	21.9	23.0
61–75 years	45.1	44.8	48.0	34.3	34.0	37.7	50.3	50.2	50.7
>75 years	19.4	19.6	17.4	9.6	9.8	7.1	24.1	24.6	20.1
Sex
Male	33.5	32.8	40.5	37.3	37.4	35.7	31.6	30.4	41.8
Female	66.5	67.2	59.5	62.7	62.6	64.3	68.4	69.6	58.2
Race
White	53.4	53.3	54.3	40.9	40.5	47.4	59.4	59.8	56.2
African American	27.9	28.3	23.6	35.2	36.0	23.4	24.3	24.4	23.7
Others	18.7	18.4	22.0	23.8	23.5	29.2	16.3	15.8	20.1
Ethnicity
Hispanic	9.4	9.0	13.6	13.5	12.8	24.0	7.5	7.1	10.8
Non-Hispanic	90.6	91.0	86.4	86.5	87.2	76.0	92.5	92.9	89.2
Education
<High school	22.6	22.5	23.7	22.8	22.4	29.1	22.5	22.5	22.3
≥High school	77.4	77.5	76.3	77.2	77.6	70.9	77.5	77.5	77.7
Health insurance coverage
Yes	85.4	85.7	82.5	77.9	78.5	68.7	89.0	89.4	86.2
No	14.6	14.3	17.5	22.1	21.5	31.3	11.0	10.6	13.8
Risk factors
Current smoker	8.6	8.7	8.1	13.5	13.5	14.1	6.3	6.3	6.5
Obesity	56.6	56.6	56.6	59.6	59.5	60.3	55.2	55.2	55.7
Hypertension	93.9	93.8	94.8	92.8	93.0	89.6	94.4	94.2	96.2
Self-reported CVD	40.4	39.0	54.2	34.5	34.0	42.2	43.3	41.5	57.4
Dyslipidemia	37.3	36.4	46.3	38.7	38.2	46.1	36.7	35.5	46.4

Numbers of patients are given in parentheses. Diabetes was defined as self-reported history of diabetes mellitus or treatment for diabetes.