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

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