Table 1 Characteristics of NHANES III participants stratified by CKD AND periodontal disease status

Characteristic

Age, years

41.5 (0.5)

62.8 (1.6)

51.9 (1.2)

<0.001

53.5 (1.0)

39.6 (0.4)

<0.001

Female

50.0

42.2

62.1

<0.001

31.9

49.8

<0.001

Race

Non-Hispanic White

75.7

69.5

73.5

0.4

67.2

76.4

0.004

Non-Hispanic Black

10.7

25.1

11.9

<0.001

16.9

10.2

<0.001

Mexican American

5.5

3.9

4.6

0.5

4.2

5.6

0.007

Other

8.2

1.5

10.0

0.001

11.7

7.9

0.1

Annual Income < $20,000

27.9

60.9

35.3

<0.001

39.9

26.3

<0.001

< High School Education

63.5

89.9

70.1

<0.001

77.8

61.8

<0.001

Health Insurance

86.5

88.8

89.7

0.8

85.9

86.2

0.9

Dental care use

71.0

49.5

70.10

<0.001

60.3

71.8

<0.001

Annual Physician visit

77.2

75.7

88.5

0.003

72.1

76.4

0.1

Never Smoked

48.4

25.0

46.5

<0.001

22.3

50.1

<0.001

Hypertension

20.4

44.3

42.2

0.7

28.5

17.7

<0.001

Diabetes

5.8

30.7

20.3

0.03

10.8

3.9

<0.001

Cardiovascular Disease

3.4

16.7

9.8

0.02

10.4

2.3

<0.001

Family history of CHD

9.2

13.2

9.7

0.4

12.2

8.9

0.2

Body Mass Index, Kg/m²

26.4 (0.1)

28.1 (0.7)

27.8 (0.4)

0.7

27.1 (0.2)

26.2 (0.1)

<0.001

Systolic BP

120.6 (0.4)

143.0 (1.9)

131.6 (1.0)

<0.001

128.8 (1.1)

119.0 (0.3)

<0.001

Hemoglobin A1c, %

5.3 (0.02)

6.4 (0.37)

5.9 (0.08)

0.07

5.7 (0.08)

5.2 (0.02)

<0.001

Total Cholesterol, mg/dL

200.3 (0.9)

220.3 (5.1)

213.3 (2.0)

0.3

214.9 (2.0)

198.1 (0.9)

<0.001

c-Reactive Protein, mg/dL

0.4 (0.01)

0.6 (0.05)

0.6 (0.04)

0.9

0.5 (0.04)

0.3 (0.01)

<0.001

White Blood Cell Count/μL

7.2 (0.04)

8.3 (0.34)

7.5 (0.13)

0.05

7.9 (0.16)

7.1 (0.04)

<0.001

Plasma Fibrinogen, mg/dL*

298.3 (2.7)

342.0 (8.0)

328.1 (6.5)

0.1

312.9 (6.1)

291.6 (2.7)

<0.001