Dissatisfied

Satisfied

P

n

%

n

%

Age

0.02

<45

69

60.5

45

39.5

45 - 65

88

44.0

112

56.0

>65

30

47.6

33

52.4

Vascular access

0.04

central venous catheter

39

52.0

36

48.0

Arteriovenous fistula

121

40.1

181

59.9

Urea reduction ratio

0.01

<60

29

30.9

65

69.1

≥60

131

46.3

152

53.7