Cephalic venous diameter(mm)

With AVF failure(n=16)

Without AVF failure(n=24)

Total

P value

Forearm

Mean ± SD

2.01 ± 0.5

2.35 ± 0.49

2.21 ± 0.52

0.037^‡

Median(25th-75th percentile)

1.95(1.7-2.2)

2.3(2.175-2.525)

2.2(1.9-2.5)

Range

1.1-3.1

1.1-3.6

1.1-3.6

Arm

Mean ± SD

2.51 ± 0.54

3.4 ± 0.73

3.04 ± 0.79

0.0002^‡

Median(25th-75th percentile)

2.45(2.175-2.725)

3.3(2.875-3.6)

2.9(2.575-3.4)

Range

1.7-3.9

2.5-5.5

1.7-5.5

Depth from skin(mm)

With AVF failure(n=16)

Without AVF failure(n=24)

Total

P value

Mean ± SD

4.19 ± 1.87

3.34 ± 1.32

3.68 ± 1.6

0.101^‡

Median(25th-75th percentile)

4.35(2.75-5.175)

3.1(2.375-4.625)

3.3(2.375-4.925)

Range

1.5-8.5

1.5-5.5

1.5-8.5