Research Article

Clinical Differences between Eosinophilic and Noneosinophilic Acute Exacerbation of Chronic Obstructive Pulmonary Disease: A Multicenter Cross-Sectional Study

Table 1

Demographic data of the patients with AECOPD ().

NEOS-AECOPD ()MEOS-AECOPD ()SEOS-AECOPD ()Statistical values

Sex (male, )159511381.3750.503
Age (years)2.2720.104
BMI1.3290.266
Smoking0.3660.833
Nonsmoking742471
Ex-smoking561136
Current smoking842871
GOLD stages5.8750.053
Stage I: mild (≥80%)251021
Stage II: moderate (50-79%)622459
Stage III: severe (30-49%)541752
Stage IV: very severe (<30%) without respiratory failure17413
Respiratory failure56833
Underlying diseases/comorbidities
Pneumothorax2031.3170.518
Pleural effusion (PE)11063.6840.158
Community-acquired pneumonia (CAP)9626740.5250.769
Cor pulmonale436264.6980.095
Coronary artery disease (CAD)4612272.5670.277
Hypertension8021731.2880.525
T2DM3914205.5950.061
Atrial fibrillation (Af)11351.3830.501
Connective tissue disease (CTD)0046.2800.043
Metabolic acidosis3512203.1160.211