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Table 1 Baseline demographics and prevalence of cardiovascular disease according to disease stage, the CKD-ROUTE study (Oct 2010 - Dec 2011)

From: Baseline characteristics and prevalence of cardiovascular disease in newly visiting or referred chronic kidney disease patients to nephrology centers in Japan: a prospective cohort study

 

All

Stage 2

Stage 3

Stage 4

Stage 5

P- value

 

n = 1138

n = 95

n = 470

n = 364

n = 209

 

Age (years old)

68 ± 14

57 ± 17

67 ± 13

71 ± 12

69 ± 14

<0.001

 

70 [61–77]

61 [46–71]

70 [60–76]

73 [64–78]

70 [61–78]

 

Male gender

792

57

361

255

119

<0.001

 

69.6%

60.0%

76.8%

70.1%

56.9%

 

Self-feeding ability

1118

94

460

360

204

0.744

 

99.1%

98.9%

99.1%

99.4%

98.6%

 

BMI (kg/m2)

23.7 ± 4.0

23.0 ± 4.0

23.7 ± 3.7

23.9 ± 4.1

23.8 ± 4.5

0.351

 

23.3 [21.0 - 25.8]

22.6 [20.6 - 25.4]

23.5 [21.3 - 25.7]

23.4 [21.0 - 26.4]

23.0 [20.9 - 25.6]

 

BMI ≥ 25 kg/m2

328

20

129

115

64

0.473

 

32.8%

26.0%

32.0%

35.1%

33.2%

 

Diabetes

422

15

141

163

103

<0.001

 

37.1%

15.8%

30.0%

44.8%

49.3%

 

HbA1c (NGSP) (%)

6.1 ± 1.0

6.0 ± 1.1

6.1 ± 1.0

6.2 ± 1.0

6.1 ± 1.0

0.083

 

5.9 [5.6 - 6.5]

5.7 [5.5 - 6.1]

5.9 [5.6 - 6.4]

6.0 [5.6 - 6.6]

5.9 [5.5 - 6.5]

 

Albumin (g/dl)

4.0 ± 0.8

4.0 ± 0.6

3.8 ± 0.6

3.5 ± 0.6

3.8 ± 0.6

<0.001

 

4.3 [3.7 - 4.5]

4.1 [3.8 - 4.4]

3.9 [3.5 - 4.2]

3.6 [3.2 - 4.0]

4.0 [3.5 - 4.3]

 

eGFR (ml/min per 1.73 m2)

32.7 ± 18.7

72.1 ± 8.5

43.3 ± 8.2

22.0 ± 4.4

9.9 ± 3.0

<0.001

 

29.8 [17.5 - 45.0]

70.6 [64.9 - 79.7]

43.2 [35.5 - 50.2]

21.7 [17.9 - 25.6]

9.8 [7.4 - 12.4]

 

SBP (mmHg)

140 ± 22

139 ± 20

137 ± 22

140 ± 24

146 ± 22

<0.001

 

138 [125–152]

136 [125–150]

135 [122–150]

136 [125–154]

143 [136–160]

 

DBP (mmHg)

78 ± 15

83 ± 14

79 ± 15

75 ± 15

79 ± 15

<0.001

 

78 [68–87]

83 [74–92]

79 [70–87]

75 [64–83]

78 [69–90]

 

Causes of CKD

      

Diabetic nephropathy

287

10

74

116

87

<0.001

 

25.5%

10.5%

16.0%

32.0%

42.2%

 

Nephrosclerosis

451

23

214

159

55

 
 

40.0%

24.2%

46.2%

43.8%

26.7%

 

Glomerulonephritis

216

43

83

49

41

 
 

19.2%

45.3%

17.9%

13.5%

19.9%

 

Others

173

19

92

39

23

 
 

15.4%

20.0%

19.9%

10.7%

11.2%

 

Prevalence of CVD

305

7

104

130

64

<0.001

 

26.8%

7.4%

22.1%

35.7%

30.6%

 
  1. Continuous variables are presented as mean ± standard deviation and median with interquartile ranges. Categorical data are presented as numbers (n) of patients and percentages in each CKD stage. BMI body mass index, NGSP National Glycohemoglobin Standardization Program, eGFR estimated glomerular filtration rate, SBP systolic blood pressure, DBP diastolic blood pressure, CVD cardiovascular disease.