Table 5 Risk factors for herpes simplex virus-related tracheobronchitis or pneumonia and fatal outcome: results of multiple logistic regression analysis with stepwise variable selection

Outcome herpes simplex virus-related tracheobronchitis or pneumonia

   Interaction of ventilation time > median with tracheotomy

32.8

2.72–1000

   Number of erythrocyte concentrates > median (7)

8.16

0.96–226.4

   c index 0.867

Outcome death

   Ventilation time > median (4.7 days)

30.7

3.3–892.7

   Bronchoscopy

19.8

2.2–536.6

   Number of thrombocyte concentrates > median (3)

16.3

2.1–388.7

   c index 0.899