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Table 2 Variables related to COPD exacerbation

From: Trends in use and impact on outcome of empiric antibiotic therapy and non-invasive ventilation in COPD patients with acute exacerbation

Variables

All hospitalisations: n = 552

SAPS II (n = 533) med (IQR)

27 (21–34)

pH at ICU admission (n = 534) med (IQR)

7.28 (7.23–7.32)

PaO2 (mmHg) (n = 534)med (IQR)

66.9 (51–90)

PaCO2 (mmHg) (n = 534) med (IQR)

65.9 (55.6–76.4)

HCO3 − (mmol/l) (n = 534) med (IQR)

31 (27.1–34.8)

CRP (mg/L) (n = 223) med (IQR)

41 (11.3–96.3)

WBC count (cells/µl) (n = 338) med (IQR)

10,800 (8000–14,200)

Modality of ventilation at ICU admission

 Invasive ventilation n (%)

178 (32.2)

 NIV n (%)

374 (67.8)

NIV failure n (%)

63 (16.8)

Empiric antibiotic therapy at ICU admission n (%)

325 (58.9 %)

Bronchodilators n (%)

483 (87.5)

Systemic corticosteroids for exacerbation n (%)

199 (36.1)

VAP n (%)

63 (11.4)

Duration of ICU stay (days) (n = 552) med (IQR)

9 (6–14)

  1. SAPS Simplified Acute Physiology Score, ICU intensive care unit, PaO 2 arterial oxygen tension, PaCO 2 arterial carbon dioxide tension, HCO − 3 bicarbonate concentration, CRP C reactive protein, WBC white blood cells, NIV non-invasive ventilation, VAP ventilator associated pneumonia, med median, IQR inter-quartile range