TABLE 1

Baseline characteristics and therapies of chronic obstructive pulmonary disease patients by radiological diagnosis on first admission

ExacerbationPneumoniap-value
Patients437184
Age years mean±sd70.61±10.7074.08±9.360.0002
Males51%52%1.0
FEV1 % predicted41 (21–56)39 (30–59)0.49
FEV1 L0.955 (0.7–1.25)0.96 (0.675–1.425)0.82
FEV1/FVC48% (38–57%)44% (35.5–57.5%)0.54
Body mass index kg·m−223 (20–29)23 (18.3–27.0)0.72
Current smoker83 (18.4%)33 (17.4%)1.0
Bronchiectasis45 (10%)21 (11.1%)0.69
Ischaemic heart disease154 (35.2%)70 (38.5%)0.46
Type II diabetes74 (16.9%)31 (17.0%)1.0
Previous stroke16 (3.5%)4 (2.1%)0.49
Admission for pneumonia in last year22 (5%)31 (16.8%)<0.001
Total number of admissions in study period2.37±3.591.48±3.010.002
Inhaled corticosteroid users344 (78.7%)138 (75.8%)0.45
Fluticasone users236 (52.4%)112 (59.0%)0.19
Budesonide users97 (22.0%)23 (12.1%)0.01
Beclomethasone equivalent dose mg·day−11600 (400–2000)1000 (0–2000)0.87
Long-term oxygen therapy users61 (13.9%)33 (18.3%)0.18

Data are presented as n (%) or median (interquartile range) unless otherwise stated. FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity.