Table 1 Demographic characteristics and comorbidities of all 113 patients enrolled in thestudy

Demographics

Age^a

64

(59 to 71)

Gender male

90

79.65

Years of education

   Between 1 and 7 years

31

28

   Between 8 and 11 years

66

58

   12 years or more

16

14

Living area

   City > 100,000 people

54

48

   City < 100,00 people

33

29

   Country

26

23

Social status

   Living with family

100

88.5

   Living alone

13

11.5

Psychiatric comorbidities

Depression

18

16

TMT-B score^a

130

(96 to 200)

MoCA score^a

26

(24 to 27)

MoCA score < 25

36

32

Physical comorbidities

   Anemia (hemoglobin < 10 mg/dl)

18

16

   Urea concentration > 7 mmol/l

33

29.2

   Creatinine concentration > 120 μmol/l

7

6.2

   Peripheral vascular disease

23

20.3

   Atrial fibrillation

9

8

   Arterial hypertension

94

83

   Diabetes

39

35

   Cerebrovascular disease

6

5.3

New York Heart Association grade

   0

13

11

   I

30

27

   II

52

46

   III

18

16

   IV

-

Canadian Cardiovascular Society degree

   0

4

4

   I

8

7

   II

48

42

   III

50

44

   IV

3

3