Table 1 Baseline characteristics and subdistribution hazard ratio (SHR) for P. aeruginosa ICU pneumonia

Gender: female^a

1915 (37.6)

0.73 (0.43–1.24)

0.24

Age^b

59.4 (16.1)

0.99 (0.98–1.01)

0.43

Length of stay in days

9.1 (11.7)

-

-

 Median

5.0

Medical admission^c

2176 (42.7)

1.34 (0.82–2.20)

0.24

 - PA –

2221 (43.6)

ref

ref

 - PA +

226 (4.4)

8.84 (4.96–15.74)

<0.001 ^*

 - Unknown/missing

2645 (51.9)

1.04 (0.58–1.86)

0.89

ICU mortality

691 (13.6)

-

-

Mechanical ventilation at ICU admission

2591 (50.9)

5.2 (2.70–10.47)

<0.001 ^*

ICU pneumonia

675 (13.3)

-

-

 - PA

68 (1.3)

 - other confirmed pathogen

347 (6.8)

 - unknown pathogen

260 (5.1)