TABLE 7.1 Renal Disease Population as of December 31, 1997

 

End-Stage Renal Disease Patients

Dialysis Patients

 

Number

Percent

Number

Percent

Total

304,083

100

221,596

100

Age Group

0–19

5,480

2

1,768

1

20–44

76,018

25

39,398

18

45–64

117,865

39

81,904

37

65–74

63,197

21

57,316

26

≥75

41,523

14

41,210

18

Race

Native American

4,614

2

3,663

2

Asian/Pacific Islander

10,795

4

7,885

4

African American

97,503

32

82,624

37

Caucasian

186,341

61

123,269

56

Other

4,830

2

4,155

2

Gender

Male

165,176

54

115,902

52

Female

138,907

46

105,694

48

Cause of ESRD

Diabetes

100,892

33

84,076

38

Hypertension

72,961

24

61,673

28

Glomerulonephritis

52,229

17

29,433

13

Other

78,001

26

46,414

21

 

SOURCE: USRDS (1999).

(USRDS, 1997). The high morbidity and mortality among dialysis patients has stimulated research into potentially correctable factors that are associated with increased risk of death. The search for antecedent factors requires consideration of earlier stages of chronic renal disease.

Renal disease is marked by a decrease in the ability of the kidney to excrete metabolic waste and a subsequent build up of urea and other nitrogenous waste in the blood. For the purpose of this report, three stages of chronic renal disease are considered: chronic renal insufficiency, ESRD, and post-renal transplantation. Chronic renal insufficiency (CRI) is defined as the stage of renal disease associated with a reduction in renal function not severe enough to require dialysis or transplantation (glomerular filtration rate [GFR] 13–50 ml/min/1.73 m2). ESRD is defined as chronic renal disease that necessitates treatment by dialysis or renal trans-



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