Table 1 Characteristics of U.S. ESRD patients with attributed causes of lupus nephritis, other types of glomerulonephritis, and all other causes, 7/05–9/11

N

675,889

6,594

51,537

617,758

Sociodemographic

Age, years, mean (SD)

62.5 (16.0)

39.6 (15.4)

53.9 (18.9)

63.4 (15.3)

Sex, %

Female

43.7%

81.1%

40.7%

43.5%

Male

56.3%

18.9%

59.3%

56.5%

Race/ethnicity, %

White

52.9%

24.7%

57.8%

52.7%

Black

28.1%

49.7%

22.5%

28.3%

Hispanic

13.4%

17.7%

12.3%

13.4%

Other

5.7%

7.9%

7.4%

5.6%

Insurance at ESRD start, %

Private

31.3%

37.4%

41.8%

30.3%

Medicaid

24.5%

32.8%

18.6%

24.9%

Medicare/other

36.8%

18.4%

30.0%

37.5%

None

7.5%

11.5%

9.6%

7.3%

Clinical

Smoking, %

No

93.8%

95.7%

92.7%

93.9%

Yes

6.2%

4.3%

7.3%

6.1%

BMI, kg/m², mean (SD)

28.9 (7.8)

26.9 (7.4)

28.1 (7.5)

29.0 (7.8)

Hypertension, %

No

15.4%

16.4%

17.0%

15.3%

Yes

84.6%

83.6%

83.0%

84.7%

CVD, %

No

57.8%

81.4%

75.8%

56.0%

Yes

42.2%

18.6%

24.2%

44.0%

Albumin, g/dl, mean (SD)

3.1 (0.7)

2.9 (0.8)

3.2 (0.8)

3.1 (0.7)

Hemoglobin, g/dl, mean (SD)

10.0 (1.7)

9.5 (1.7)

10.0 (1.8)

10.0 (1.6)

Recovery of renal function, %

No

95.5%

93.1%

95.9%

95.5%

Yes

4.5%

6.9%

4.1%

4.5%