Table 3 Risk factors of catheter-related infection.

From: Incidence and challenges in management of hemodialysis catheter-related infections

Univariate analysis

Parameters

CRI

RR

CI à 95%

P

Yes

No

Gender

Female

41

39

1

Reference

NS

Male

59

61

1.09

[0.46–1.82]

 

Age (years)

58.2

55

1.01*

[0.99–1.04]

NS

BMI

 < 30 kg/m2

71

86

1

Reference

 < 0.04

 > 30 kg/m2

29

14

2.37

[1.05–5.37]

Poor personal hygiene status

No

71

14

1

Reference

 < 0.001

Yes

29

86

19.80

[7.65–51.32]

Diabetes

No

53

59

1

Reference

NS

Yes

47

41

0.52

[0.64–2.46]

Seniority in HD (years)

16.5

3.7

1.02

[1.001–1.043]

 < 0.04

History of bacteremia

No

88

96

1

Reference

NS

Yes

12

4

2.38

[0.57–9.93]

History of catheterization

No

84

95

1

Reference

 < 0.04

Yes

16

5

3.41

[1.12–10.45]

Insertion site

Internal jugular

86

98

1

Reference

NS

Femoral

10

0

3.60

[0.58–22.28]

Sub-clavian

4

2

2.40

[0.15–39.22]

 

Type of catheter

Non-tunnelled

35

85

1

Reference

NS

Tunnelled

14

31

1.19

[0.56–2.35]

Number of haemodialysis sessions per week

 < 3

4

78

1

Reference

 < 0.02

3

96

22

6.48

[1.47–28.64]

Duration of the use of the catheter (months)

2.23

1.42

1.25**

[1.02–1.54]

 < 0.04

Ferritinemia (ng/ml)

683.5

150.5

2.06***

[1.87–2.71]

 < 0.0001

Hemoglobin (g/dl)

6.8

9.4

22.2

[7.9–62.5]

 < 0.0001

Albumin (g/l)

37.1

36.7

1

[0.990–1.011]

NS

Multivariate analysis

   

Parameters

RR

CI à 95%

P

   

Poor personal hygiene status

29.09

[7.08–119.5]

 < 0.0001

   

Duration of use of the catheter(months)

1.51

[1.12–2.03]

 < 0.007

   

Ferritinemia (/100 ng/ml)

2.39

[1.63–3.51]

 < 0.0001

   
  1. Significant values are in bold.
  2. BMI Body mass index, CRI Catheter related infection.
  3. *Per year. **Per month. ***Each increment of 100 ng/ml.