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Table 2 Characteristics of ST131 E. coli colonized and non-colonized hospital contacts of index nosocomial patients. Data are expressed as number of exposed patients (percentage) except where specified

From: Intestinal colonization due to Escherichia coli ST131: risk factors and prevalence

Features of contacts (individual level)

ST 131 colonized hospital contacts (n = 10)

Non-ST131 colonized hospital contacts (n = 44)

P

Adjusted OR

p

Median age in years (IQR)

81.5 (75.5–87.75)

6.08 (59.75–80.0)

0.05

  

Male gender

5 (50.0)

20 (45.4)

0.79

  

Median Charlson index (IQR)

1 (0.25–5)

1 (0–3.75)

0.76

  

Diabetes mellitus

3 (30.0)

15 (34.0)

0.80

  

Cancer

3 (30.0)

13 (29.5)

0.98

  

Liver cirrosis

0

1 (2.2)

1

  

Recurrent urinary tract infections

1 (10.0)

1 (2.2)

0.34

  

Dependent for basic activities

5 (50.0)

3 (6.8)

0.003

21.1 (3.61–160.0)

0.001

Bed-ridden

1 (10.0)

0

0.18

  

Shared room with index patient

7 (70.0)

24 (54.5)

0.37

  

Surgery during present admission

4 (40.0)

15 (34.0)

0.72

  

Urinary catheter

6 (60.0)

12 (27.2)

0.19

8.4 (0.97–76.9)

0.05

Recent antimicrobial use

4 (40.0)

16 (36.3)

0.83

  

Proton pump inhibitor use

6 (60.0)

34 (77.2)

0.85

  

Median (IQR) days of hospital stay

5.5 (4.0–11.25)

6 (3.75–9)

0.70

  

Features of index patient (cluster level)

Clusters with at least one ST131 colonized hospital contact (n = 8)

Clusters without any ST131 colonized hospital contact (n = 22)

P

  

Median age in years (IQR)

62.50 (52.75–78)

67.10 (58.25–80.75)

0.70

  

Male gender

5 (62.5)

6 (27.3)

0.28

  

Median Charlson index (IQR)

2.60 (0–6)

2.40 (0–6)

0.7

  

Bed-ridden

0

3 (13.6)

0.53

  

Dependent for basic activities

2 (25)

4 (18.1)

0.73

  

Admission to a surgical ward

4 (50)

8 (36.3)

0.66

  

Admission to a medical ward

5 (62.5)

11 (50)

0.74

  

Admission to an intensive care unit

1 (12.5)

0

0.21

  

Surgery during present admission

4 (50)

5 (22.7)

0.39

  

Urinary catheter

7 (87.5)

10 (45.4)

0.76

  

Recent antimicrobial use

7 (87.5)

10 (45.4)

0.42

  

Median (IQR) days of hospital stay

27.2 (7–46)

35.5 (14.75–24)

0.59