Table 1 Characteristics of patients with pneumonia and healthy subjects
Pneumonia (N = 43) | Healthy (N = 43) | |
|---|---|---|
Age (year) | 63.8 ± 2.4 | 63.3 ± 0.7 |
Female/Male | 12/31 | 19/24 |
APACHE II | 18.1 ± 1.0 | |
MV mode | ||
IPPV | 44% (N = 19) | |
SIMV | 26% (N = 11) | |
A/C | 14% (N = 6) | |
Others | 16% (N = 7) | |
VT (mL) | 425.9 ± 6.9 | |
PEEP (cmH2O) | 6.9 ± 0.5 | |
PaO2/FiO2 | 168.4 ± 10.3 | |
WBC counts (× 109/L) | 14.3 ± 1.2* | 7.9 ± 0.3 |
Neutrophil counts (×109/L) | 12.8 ± 1.1* | 6.1 ± 0.3 |
Hemoglobin (g/L) | 94.9 ± 2.8* | 142.5 ± 1.8 |
PLT counts (×109/L) | 209.6 ± 25.4* | 253.9 ± 6.8 |
Creatinine (μmol/L) | 113.8 ± 15.0 | |
PCT (μg/L) | 17.0 ± 6.8 | |
HSCPR (mg/L) | 62.0 ± 13.8 | |
HNP concentration (ng/mL) | 215.9 ± 39.1* | 27.6 ± 2.0 |
Etiology of pneumonia | ||
Acinetobacter baumannii | 35% (N = 15) | |
Pseudomonas aeruginosa | 14% (N = 6) | |
Stenotrophomonas maltophilia | 9% (N = 4) | |
Staphylococcus haemolyticus | 7% (N = 3) | |
Klebsiella pneumoniae | 7% (N = 3) | |
Staphylococcus aureus | 7% (N = 3) | |
Others | 21% (N = 9) | |
Co-morbidities | ||
COPD | 23% (N = 10) | |
Hypertension | 35% (N = 15) | |
Diabetes | 19% (N = 8) | |
Renal failure | 14% (N = 6) | |
Asthma | 2% (N = 1) | |
Corticosteroid treatment | 37% (N = 16) | |
ICU stay (days) | 28.9 ± 3.5 | |
ICU mortality (%) | 33% | |