Table 3 Univariate and multivariate logistic regression of factors associated with thrombosis of vascular accesses.

From: Temporal distribution and biological determinants of thrombotic events after interventions for dialysis vascular access

Factors

Unit of increase

Hazard ratio

95% confidence interval

P-value

Univariate analysis

Age

1 year

1.03

1.00–1.05

0.03

Sex

Male

0.70

0.34–1.42

0.32

Haemodialysis vintage

1 month

0.99

0.99–1.00

0.02

Hypertension

Yes

1.70

0.63–1.82

0.79

Diabetes

Yes

1.63

0.96–2.77

0.07

Dyslipidaemia

Yes

1.33

0.65–2.73

0.43

Cardiovascular disease

Yes

2.46

1.42–4.26

<0.01

Cholesterol

1 mg/dl

0.99

0.98–1.00

0.13

Albumin

1 g/dl

0.55

0.24–1.26

0.16

Kt/V

1

0.64

0.26–1.56

0.33

Statin

Yes

1.66

0.69–3.98

0.25

Graft

Yes

3.85

2.22–6.67

<0.01

Occlusion

Yes

5.41

2.53–11.6

<0.01

Multiple stenoses

Yes

1.85

0.80–4.01

0.12

Residual stenosis

Yes

1.95

1.14–3.35

0.02

HS-CRP

1 mg/dl

1.27

0.95–1.70

0.11

Indoxyl sulphate

1 μg/dl

1.31

1.14–1.50

<0.01

EPC

1/106 cell

0.97

0.95–0.99

0.03

Multivariate*

Cardiovascular disease

Yes

2.36

1.10–5.05

0.03

Graft

Yes

2.56

1.23–5.34

0.01

Indoxyl sulphate

1 μg/dl

1.22

1.01–1.47

0.04

  1. Abbreviations: EPC, endothelial progenitor cells; HS-CRP, high-sensitivity C-reactive protein; Kt/V, urea clearance.
  2. *All variables with a p-value less than 0.02 in the univariate analysis were included in the multivariate analysis.