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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