Table 1: Characteristics of patients and arteriovenous access included (n=145)

Variable

Patients who died

Patients who survived

p

Number: % (n)

22.1 (32)

77.9 (113)

-

Gender % (n): male / female

53.1 (17) / 46.9 (15)

62.8 (71) / 37.2 (42)

0.32

Age (years)

71.1±8.0

60.2±13.8

<0.001

Time on hemodialysis (months)

46.7±62.0

27.0±39.6

0.25

Primary kidney disease % (n)

Glomerular disease Polycystic

kidney disease Interstitial disease

Vascular disease Diabetic

nephropathy

Hypertensive nephropathy

Unkonwn

12.5 (4)

12.5 (4)

9.4 (3)

6.2 (2)

21.9 (7)

15.6 (5)

21.9 (7)

17.7 (20)

15.0 (17)

12.4 (14)

1.8 (2)

16.8 (19)

10.6 (12)

25.7 (29)

0.48

0.41

0.64

0.21

0.51

0.65

0.66

Coronary artery disease (%)

31.3 (10)

17.9 (20)

0.10

Peripheral vascular disease (%)

18.8 (6)

12.4 (14)

0.36

Cerebrovascular disease (%)

28,1 (9)

16.8 (19)

0.15

At least one cardiovascular disease (% )

53.1 (17)

35.4 (40)

0.07

Baseline single-pool Kt/V index

1.40±0.21

1.37±0.23

0.37

Overall single-pool Kt/V index

1.44±0.18

1.41±0.22

0.56

Baseline mean arterial pressure (mmHg)

96.2±14.7

94.8±12.5

0.76

Overall mean arterial pressure (mmHg)

94.8±14.5

94.0±11.9

0.87

Type of arteriovenous access (%): fistula / graft

87.5 (28) / 12.5 (4)

83.2 (94) / 16.8 (19)

0.56

Radial artery-based fistula (%)

59.4 (19)

52.2 (59)

0.47

Brachial artery-based fistula (%)

28.1 (9)

31.0 (35)

0.76

Brachial artery-based graft (%)

3.1 (1)

7.1 (8)

0.41

Femoral artery-based graft (%)

9.4 (3)

9.7 (11)

0.95

Duration of current arteriovenous access (months)

25.6±54.8

35.2±53.2

0.16

History of previous arteriovenous accesses (%) : 1 / >1

62.5 (20) / 37.5 (12)

57.5 (65) / 42.5 (48)

0.61

Ratio number arteriovenous access /patient

2.00±1.62

1.84±1.42

0.61

Baseline arteriovenous access flow (ml/min)

907.6±398.1

1150.8±432

0.005

Overall arteriovenous access flow (ml/min)

933.9±393.5

1207.3±476.6

0.002

Elective arteriovenous access intervention for stenosis (%)

18.7 (6)

14.2 (16)

0.41