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Table 3 Variables associated with CRAB colonization between different departments: geriatrics, internal medicine and ICU

From: Risk factors for nosocomial rectal colonization with carbapenem-resistant Acinetobacter baumannii in hospital: a matched case–control study

Variables

Geriatrics n = 51

Internal medicine = 51

ICU n = 21

Univariate analysis

Univariate analysis

Univariate analysis

OR

95% CI

P value

OR

95% CI

P value

OR

95% CI

P value

Age (years)

0.99

0.91–1.08

0.896

0.99

0.95–1.04

0.861

0.99

0.95–1.03

0.843

Sex, male

0.77

0.23–2.57

0.682

0.49

0.15–1.59

0.237

1

0.07–13.36

1.000

LOS

1.01*

0.99–1.03

0.082

1.02*

1.00–1.05

0.012

1.03

0.99–1.07

0.134

ICU stay

7.07

0.67–73.99

0.103

6.52

1.70–25.03

0.006

2.4

0.21–26.82

0.477

aDeaths

13.75

1.45–129.98

0.022

1

0.08–11.87

1.000

8

0.96–66.44

0.054

Provenance of patient at admission

         

Home

ref.

  

ref.

  

ref.

  

LTHCF

  

4.46

0.37–53.70

0.239

  

Other hospital

  

1.11

0.18–6.87

0.906

  

Recent hospitalization

1

0.08–11.87

1.000

3.17

0.62–16.24

0.165

9.75

0.78–121.83

0.077

Charlson index

1.15

0.84–1.57

0.358

1.21

0.95–1.55

0.113

1.18

0.83–1.67

0.335

McCabe Score, Nonfatal vs. fatal disease and rapidly fatal disease

2.69*

0.80–8.93

0.107

0.76

0.21–2.68

0.675

8.38

1.16–60.45

0.035

Major surgery during hospitalization

0.69

0.15–3.05

0.631

4.30

0.88–20.87

0.070

4.49

0.54–37.37

0.164

Disability

         

No disability

ref.

  

ref.

  

ref.

  

Partial

2.18

0.51–9.22

 

1.93

0.38–9.72

0.424

11

0.81–147.86

0.070

Bedridden

4.19

0.94–18–70

 

1

 

1.83

0.12–27.79

 

Permanent devices

   

5.63*

1.19–26.48

0.028

1

 

Presence of extrinsic risk factors

         

Central vascular catheterization

6.66

1.13–39.09

0.036

18

3.23–100.21

0.001

1

 

PICC or midline

1

 

1.60

0.31–8.16

0.567

4.49

0.54–37.37

0.164

Urinary catheter

10.71*

2.10–54.45

0.004

13.75

2.68–70.49

0.002

2.4

0.21–26.82

0.477

Naso-gastric tube

10.15

1.03–99.60

0.047

4.92

0.80–30.25

0.085

6.25

0.83–46.56

0.074

Mechanical ventilation

1

0.08–11.87

1.000

13.75

1.45–129.98

0.022

3.33

0.50–22.14

0.213

Antibiotics ≤ 30 days before hospitalization

3.02

0.68–13.22

0.142

1.37

0.20–9.14

0.740

2.4

0.26–22.10

0.440

Chemotherapy

2.13

0.27–16.63

0.470

4.39

0.36–52.37

0.241

1

 

Corticosteroid therapy

3.26

0.88–12.08

0.076

1.60

0.31–8.16

0.567

6.25

0.83–46.56

0.074

Antibiotics during hospitalization

2.75

0.29–25.70

0.373

12.63*

1.50–106.36

0.020

1

 

3GC

1.19

0.37–3.85

0.765

1

0.21–4.60

1.00

32.9

2.45–443.59

0.008

Carbapenems

3.32

0.49–22.14

0.215

8.72

153–49.75

0.015

14.66

1.16–185.23

0.038

Penicillins

0.77

0.23–2.57

0.682

4.64

1.24–17.24

0.022

1.2

0.08–16.23

0.891

Fluoroquinolones

1.71

0.39–7.49

0.468

3.17

0.62–16.24

0.165

1.2

0.18–7.77

0.848

Glycopeptides

4.06

1.04–15.72

0.043

2.13

0.27–16.63

0.470

7.5

0.92–61.04

0.060

Polytherapy

2.68

0.79–9.11

0.113

7.45

1.89–29.34

0.004

1

 

Number of antibiotics used in the hospitalization, mean ± SD (range)

1.42

0.98–2.04

0.057

1.98

1.28–3.05

0.002

3.01

0.93–9.73

0.065

  1. *Bold variables with confirmed P < 0.05 also in the multivariate analysis