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Table 3 Influence of colonization status on LOS (Model 1) and Influence of specific MDRO on LOS (Model 2)

From: Influx of multidrug-resistant organisms by country-to-country transfer of patients

  Model 1 Model 2
Parameter IRR 95 % CI P value IRR 95 % CI P value
Colonized 1.772 [1.324; 2.371] <0.001
Colonized trauma patients 2.250 [1.069;4.735] 0.033
VRE 2.882 [1.573; 5.280] <0.001
MRSA 1.343 [0.801; 2.252] 0.264
MDR–GN 1.738 [1.254; 2.411] <0.001
XDR–GN 1.338 [0.700; 2.561] 0.379
Age 0.995 [0.990; 1.001] 0.122 0.994 [0.988; 1.000] 0.052
Diagnosis related groups a
Surgical diseases 1.573 [0.702; 3.526] 0.271 1.122 [0.519; 2.424] 0.771
Mild internal diseases 0.499 [0.274; 0.909] 0.023 0.370 [0.213; 0.643] <0.001
Internal medical diseases (all others) 0.727 [0.404; 1.310] 0.2891 0.523 [0.308; 0.890] 0.017
Hereditary genetic disorders 0.920 [0.493; 1.718] 0.794 0.629 [0.354; 1.118] 0.114
Malignancies 0.945 [0.578; 1.547] 0.823 0.679 [0.443; 1.041] 0.076
Infection 1.079 [0.582; 2.000] 0.810 0.783 [0.446; 1.376] 0.396
  1. aTrauma defined as reference; IRR incidence rate ratio, CI confidence interval