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Table 3 Association between clinical features and AECOPD alone

From: Complexity in clinical diagnoses of acute exacerbation of chronic obstructive pulmonary disease

Feature

Univariate analysis OR, 95%CI

Multivariate analysis OR, 95%CI

Subjective increase in sputum purulence

0.70 (0.42 – 1.16)

0.86 (0.47 – 1.56)

Venous pCO2

2.66 (0.74 – 9.62)

1.01 (0.99 – 1.03)

CXR—pleural effusion

0.43 (0.21 – 0.87)

0.53 (0.23 – 1.18)

CXR—pulmonary edema

0.40 (0.15 – 1.08)

0.31 (0.11 – 0.91)

CXR—lobar pneumonia

0.13 (0.07 – 0.25)

0.13 (0.07 – 0.25)