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Table 1 Demographic data (Mean ± SEM) of 37 patients with HAP, including 17 patients with high-risk bacteria and 20 patients with low-risk bacteria.

From: Hospital acquired pneumonia with high-risk bacteria is associated with increased pulmonary matrix metalloproteinase activity

  all HAP patients (n = 37) high-risk bacteria (n = 17) low-risk bacteria (n = 20) *p-value
number (n) 37 17 20  
age (years) 59.8 (± 2.6) 59,3 (± 4,2)* 60,3 (± 3,5)* *0.3
male (%) 68 70.6* 40* *0.7
WBC (/nl) 12.3 (± 1.0) 13,0 (± 1,5)* 11,5 (± 1,5)* *0.20
temperature (°C) 37.3 (± 0.18) 37,5 (± 0,2)* 37,0 (± 0,3)* *0.45
CRP (ng/ml) 154.9 (± 29.5) 152,6 (± 28,9)* 157,9 (± 58,9)* *0.51
ventilated n (%)* 15 (41%) 10 (59)* 5 (25) * *0.05
oxygenation ratio 266.8 (± 21.5) 244,5 (± 33,9)* 284,6 (± 27,9)* *0.4
CPIS 6 (± 0.35) 6,2 (± 0,4)* 5,0 (± 0,4)* *0.24
PMN in BAL (%) 84,4 (± 3,2) 83,6 (± 4,1)* 87,3(± 1,6)* *0,71
mortality (%) 8.1 5.9* 10* *1.0
  1. *p- value between patients with high-risk and low-risk bacteria.
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