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Table 3 Diversity of ARE clones over time

From: Dynamics of ampicillin-resistant Enterococcus faecium clones colonizing hospitalized patients: data from a prospective observational study

 

Week 1

Week 2

Week 3

Week 4

Group 1a: Hospitalizations of hematological inpatients UHBS (n = 43)

    

E. faecium isolates, n

74

67

30

37

ARE, n

34

43

13

20

ASE, n

40

24

17

17

SID of ARE

0.745

0.775

0.513

0

95% Confidence Interval

[0.657-0.833]

[0.684-0.866]

[0.388-0.637]

[0.0-0.0]

 

Month 1 & 2

Month 3 & 4

Month 5 & 6 & 7

Group 1b: Hematological Outpatients UHBS (n = 21)

    

E. faecium isolates, n

46

31

 

30

ARE, n

20

5

 

0

ASE, n

26

26

 

30

SID of ARE

0

0

  

95% Confidence Interval

[0.0-0.0]

[0.0-0.0]

  
 

Week 1

Week 2

Week 3

Week 4

Group 2: Hospitalizations of Intensive Care Unit UMCU (n = 29)

    

E. faecium isolates, n

31

69

76

50

ARE, n

27

69

76

45

ASE, n

4

0

0

5

SID of ARE

0.373

0.676

0.808

0.781

95% Confidence Interval

[0.175-0.572]

[0.58-0.772]

[0.768-0.849]

[0.725-0.837]

  1. UHBS University Hospital Basel; UMCU University Medical Center Utrecht; SID Simpson's Index of Diversity; ARE ampicillin-resistant E. faecium; ASE ampicillin-susceptible E. faecium