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Table 2 (including HA-VRE from screening and clinical specimen). Results of multivariable analysis for hospital-acquired VRE cases with antibiotic use by antibiotic group (ATC-code 5-digit)

From: The effect of antibiotic use on prevalence of nosocomial vancomycin-resistant enterococci- an ecologic study

Parameter/category

IRR

95% CI

p-value

Ward

 Medical ward

1 = reference

  

 Hematological/oncological ward

4.90

1.8–13.3

0.002

 Intensive care unit

5.97

2.83–12.60

<.0001

 Surgical ward

1.25

0.59–2.63

0.554

At least one patient with community-acquired VRE on ward in the current month

1.69

1.32–2.16

<.0001

Screening of all patients on admission irrespective of underlying risk factors (1 = yes)

2.27

1.01–5.08

0.047

Carbapenem (J01DH) use in the current month (per 1 DDD/100 patient-days)

1.01

1.00–1.02

0.01

Glycopetide (J01XA) use in the previous month (per 1 DDD/100 patient-days)

1.02

1.01–1.04

0.002

Year 2015 (compared to 2014)

1.45

1.17–1.79

<.0001

  1. DDD Defined daily dose; IRR Incidence rate ratio; CI Confidence interval