Skip to main content

Table 1 Comparion of clinical characteristics at entry in dyalisis indcution cohort studies

From: Study protocol and baseline characteristics of newly induced dialysis patients: a prospective multi-center cohort study with a biological sample bank, the Ibaraki Dialysis Initiation Cohort (iDIC) study

 

iDIC study

AICOPP

JSDT

USRDS

year

2013–2015

2011–2013

2006

2013–2015

Number

636

1524

9689

363,307

Dialysis modality (HD/PD/transplant)

614/22/0

1409/105/0

8702/443/0

319,309/33,861/9325

Age (years old)

67.4 ± 13.1

67.5 ± 13

66.6 ± 13.2

62.5

Gender (male/female)

424/212

1032/492

6241/3448

210,785/152,522

Renal biopsy (%)

12.8

NA

N/A

NA

Medical checkup history (%)

40.3

NA

NA

NA

Diabetes at dialysis initiation (%)

58.5

53.3

58.8

NA

Hypertension at dialysis initiation (%)

93.8

NA

NA

NA

Prior myocardial infarction (%)

9.6

15.8

8.0

NA

Prior stroke (%)

15.5

13.7

15.0

NA

Prior peripheral artery disease (%)

9.9

4.7

NA

NA

Prior malignancy (%)

15.0

10.6

7.3

NA

Family history of kidney disease (%)

10.3

NA

NA

NA

Primary kidney disease (%)

 Diabetic nephropathy

51.4

43.2

42.9

44.8

 Hypertensive nephrosclerosis

15.9

25.3

9.4

28.5

 Chronic glomerulonephritis

17.9

14.7

25.6

7.5

 Autosomal dominant polycystic kidney disease

2.5

3.3

2.4

2.2

 Rapidly progressive glomerulonephritis

2.5

NA

1.2

NA

 Other disease

6.0

13.5

8.6

17.0

 Unknown cause

3.8

9.9

2.4

Body mass index (kg/m2)

24.3 ± 4.5

23.5 ± 4.4

NA

29.6

Systolic blood pressure (mmHg)

150.6 ± 26.5

151.1 ± 26.0

153 ± 28

NA

Diastolic blood pressure (mmHg)

77.8 ± 16.3

77.1 ± 15.0

78 ± 16

NA

Hemoglobin (g/dL)

9.0 ± 1.8

9.4 ± 1.5

8.4 ± 1.6

9.4

Serum creatinine (mg/dL)

9.1 ± 2.9

9.0 ± 3.2

8.2 ± 3.3

6.4

Estimated glomerular filtration rate (mL/min/1.73m2)

5.6 ± 1.8

5.6 ± 2.2

5.5 ± 3.3

9.8

Serum uric acid (mg/dL)

8.5 ± 8.6

8.8 ± 2.4

NA

NA

Serum albumin (g/dL)

3.5 ± 2.6

3.2 ± 0.6

3.3 ± 0.6

3.2

Serum total cholesterol (mg/dL)

158.5 ± 48.0

162 ± 44.3

NA

155.5

Serum corrected calcium (mg/dL)

8.5 ± 1.0

8.6 ± 1.1

8.6 ± 1.1

NA

Serum phosphate (mg/dL)

6.2 ± 1.9

6.4 ± 1.9

5.8 ± 1.9

NA

Hemoglobin A1c (%)

5.9 ± 0.9

5.8 ± 0.9

NA

6.7

Serum β2-microglobulin (mg/L)

26.8 ± 52.5

NA

NA

NA

Intact-parathyroid hormone (pg/ml)

289.5 ± 224.5

353 ± 292.4

NA

NA

Cumulative survival rate after 6 months (%)

95.2%

NA

NA

NA

Cumulative survival rate after 12 months (%)

93.7%

NA

87.4%

80.8%

Cumulative survival rate after 24 months (%)

87.7%

NA

NA

70.0%

  1. Abbreviations: iDIC Study the Ibaraki Dialysis Initiation Cohort Study, AICOPP Aichi Cohort Study of Prognosis in Patients Newly Initiated Into Dialysis, JSDT The Japanese Society for Dialysis Therapy, USRDS the United States Renal Data System, HD Hemodialysis, PD Peritoneal dialysis, NA not available