Table 5 Multivariable analysis of VAQ scores

Age (per Decade)

0.70 (0.61–0.79)

<0.001

Gender (Female)

2.23 (1.55–3.22)

<0.001

Ethnicity

0.168

 White

–

–

 Asian

0.74 (0.44–1.25)

0.262

 Black

1.39 (0.80–2.42)

0.246

 Mixed

1.29 (0.09–18.16)

0.849

Peripheral Vascular Disease

1.44 (0.87–2.39)

0.158

Cardiac disease

1.69 (1.13–2.52)

0.010

Diabetes

0.482

 No

–

–

 Diet Controlled

0.59 (0.28–1.24)

0.162

 Tablet Controlled

0.68 (0.27–1.70)

0.408

 Insulin

0.95 (0.61–1.49)

0.829

Unit

0.026

 Unit 1

–

–

 Unit 2

1.82 (0.57–5.81)

0.313

 Unit 3

2.08 (0.65–6.69)

0.218

 Unit 4

2.95 (0.92–9.50)

0.069

 Unit 5

2.92 (0.92–9.25)

0.069

 Unit 6

1.97 (0.57–6.83)

0.285

 Unit 7

2.31 (0.73–7.33)

0.154

 Unit 8

3.60 (1.15–11.28)

0.028

 Unit 9

4.96 (1.53–16.11)

0.008

 Unit 10

6.12 (1.91–19.62)

0.002

Duration of Haemodialysis (per Year)

1.02 (0.98–1.06)

0.390

Current Access

0.767

 AVF

–

–

 AV graft

1.38 (0.58–3.25)

0.467

 Tunnelled CVC

1.03 (0.62–1.71)

0.901

Duration of Current Access

0.124

 <1 month

2.71 (0.93–7.88)

0.067

 1 month - 6 months

1.25 (0.70–2.26)

0.450

 6 months − 12 months

1.66 (0.97–2.87)

0.066

 over 1 year

–

–

Radiology Intervention in the Last Year

1.75 (1.16–2.63)

0.007

Number of Previous CVC

0.474

 0

–

–

 1 to 5

0.93 (0.60–1.42)

0.725

 6 to 10

1.63 (0.72–3.67)

0.239

 >10

0.89 (0.28–2.87)

0.847