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Table 4 Predictors of outcome in 116 patients with severe acute exacerbation of chronic obstructive pulmonary disease requiring admission to the intensive care unit: univariate sensitivity analysis

From: Clinical presentation and predictors of outcome in patients with severe acute exacerbation of chronic obstructive pulmonary disease requiring admission to intensive care unit

Variable

χ2

p-value

Presence of co-morbid illness

1.673

0.0196

Altered consciousness

3.65

0.056

Presence of tachycardia

9.605

0.002

Peripheral edema

1.9

0.168

Hypoalbuminemia

4.3

0.038

Elevated transaminases

4.2

0.035

Acidosis

10.257

0.001

Arterial hypoxemia

4.999

0.025

Hypercapnia

2.189

0.139

Presence of new infiltrates on the chest radiograph

5.24

0.017

Need for invasive ventilation

16.178

0.0001