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Table 4 Intrinsic and extrinsic risk factors for Hospital Acquired Infection: univariate and multi-variate analysis (logistic regression)

From: Prevalence of hospital-acquired infections in the university medical center of Rabat, Morocco

 

Infected patients (%)

Univariate analysis

Multivariate analysis

OR*

95% CI

pvalue

OR*

95% CI

pvalue

Age (years)

       

 ≤ 15

8.5

1.07

0.6-1.9

0.815

1.03

0.47-2.28

0.939

 16 - 40

9.6

1.22

0.7-2.1

0.450

1.24

0.67-2.57

0.65

 41 - 60

8.0

1

  

1

  

 > 60

15.1

2.05

1.2-3.6

0.012

2.71

1.21-4.95

0.006

Gender

       

 Female

9.3

1

     

 Male

10.1

1.09

0.7-1.6

0.66

   

Length of hospital stay (days)

       

 ≤ 5

3.5

1

  

1

  

 6 - 10

9.5

2.87

1.4-5.7

0.003

3.79

1.68- 8.93

0.001

 11 - 20

11

3.40

1.7-6.8

0.01

4.40

1.83-10.61

0.001

 > 20

16.1

5.26

2.7-10.1

<0.001

9.6

3.63-18.51

<0.001

Provenance

       

 Home

8.5

1

  

1

  

 Hospital

1.1

1.77

1.2-2.7

0.07

1.45

0.84-2.50

0.18

MacCabe index

       

 Non fatal disease

6 .3

1

  

1

  

 Ultimately fatal disease

14.5

2.5

1.7-3.8

<0.001

2.01

1.21-3.36

0.007

 Rapidly fatal disease

20.3

3.8

1.9-7.6

<0.001

2.50

0.99-6.27

0.051

Immune deficiency

       

 No

10

1

     

 Yes

8.2

0.80

0.46-1.40

0.44

   

Diabetes

       

 No

6.7

1

  

1

  

 Yes

17.4

1.57

0.86-2.85

0.14

0.98

0.44-2.14

0.95

Surgery

       

 No

6.9

1

  

1

  

 Yes

20.8

3.55

2.37-5.29

<0.001

1.06

0.61-1.85

0.83

Intravascular catheter

       

 No

6.3

1

  

1

  

 Yes

21.0

3.95

2.67-5.86

<0.001

1.75

1.0-3.1

0.048

Urinary catheter

       

 No

5.5

1

  

1

  

 Yes

50

17.32

11.03-27.2

<0.001

9.84

5.16-17.55

<0.001

Mechanical ventilation

       

 No

9

1

  

1

  

 Yes

71.4

25.35

7.82-82.2

<0.001

3.43

0.70-17.00

0.131

Antimicrobials

       

 No

4.4

   

1

  

 Yes

20.7

5.72

3.76-8.78

<0.001

5.69

3.37-9.61

<0.001

  1. * Odds Ratio.