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Table 5 The prevalence of dementia sorted by age and performance status

From: Annual dialysis data report of the 2018 JSDT Renal Data Registry: dementia, performance status, and exercise habits

Presence/absence of dementia

Performance status score

Subtotal

Unspecified

No data available

Total

Score 0

Score 1

Score 2

Score 3

Score 4

a. Age <65 years old

 Without dementia

46,015

21,848

4885

2292

1283

76,323

1233

1783

79,339

 With dementia

289

278

226

235

348

1376

37

39

1452

 Subtotal

46,304

22,126

5111

2527

1631

77,699

1270

1,822

80,791

 Unspecified

592

481

161

94

175

1503

1462

2893

5858

 No data available

1008

517

127

80

38

1,770

54

16,754

18,578

 Total

47,904

23,124

5399

2701

1844

80,972

2786

21,469

105,227

 Dementia prevalence (%)

0.6

1.3

4.4

9.3

21.3

1.8

2.9

2.1

1.8

b. Age 65≤,<75 years old

 Without dementia

32,132

25,876

8703

4218

2211

73,140

1120

1624

75,884

 With dementia

519

953

1158

1100

1472

5202

116

185

5503

 Subtotal

32,651

26,829

9861

5318

3683

78,342

1236

1809

81,387

 Unspecified

460

530

336

196

262

1784

1351

2998

6133

 No data available

767

648

260

130

86

1891

57

16,914

18,862

 Total

33,878

28,007

10,457

5644

4031

82,017

2644

21,721

106,382

 Dementia prevalence (%)

1.6

3.6

11.7

20.7

40.0

6.6

9.4

10.2

6.8

c. Age 75≤ years old

 Without dementia

18,242

22,867

13,660

7186

3305

65,260

1101

1571

67,932

 With dementia

1030

2613

4918

4814

5551

18,926

371

635

19,932

 Subtotal

19,272

25,480

18,578

12,000

8856

84,186

1472

2206

87,864

 Unspecified

339

635

603

449

475

2501

1544

3242

7287

 No data available

429

611

480

244

169

1933

50

18,593

20,576

 Total

20,040

26,726

19,661

12,693

9,500

88,620

3,066

24,041

115,727

 Dementia prevalence (%)

5.3

10.3

26.5

40.1

62.7

22.5

25.2

28.8

22.7

  1. The data were obtained from the patient survey