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Table 1 Patient characteristics of the study population

From: The stability of blood eosinophils in stable chronic obstructive pulmonary disease: a retrospective study in Belgian primary care

Total population, n (%) 98 (100.0)
Caucasian, n (%) 98 (100.0)
Male, n (%) 73 (74.5)
Smoking status
 Smokers, n (%) 38 (38.8)
 Ex-smokers, n (%) 54 (55.1)
 Unknown, n (%) 6 (6.1)
Age, mean (SD), years 71.1 (10.3)
FEV1% predicted, mean (SD)a 60.1 (18.2)
Spirometric GOLD grade, n (%)
 Grade 1 20 (20.4)
 Grade 2 51 (52.0)
 Grade 3 22 (22.4)
 Grade 4 5 (5.1)
BMI, mean (SD), kg/m2 24.9 (5.7)
Patients with at least one exacerbation, n (%) 58 (59.2)
Patients with at least one severe exacerbation, n (%) 29 (29.6)
Comorbidities, n (%) 132 (100.0)
 Hypertension 28 (21.2)
 Gastroesophageal reflux 21 (15.9)
 Arrhythmia 19 (14.4)
 Depression 14 (10.6)
 Ischaemic heart disease 12 (9.1)
 Metabolic syndrome and diabetes 10 (7.6)
 Peripheral vascular disease 10 (7.6)
 Anxiety 4 (3.0)
 Osteoporosis 4 (3.0)
 Obstructive sleep apnea 3 (2.3)
 Bronchiectasis 1 (0.8)
 Lung cancer 0 (0.0)
  1. SD Standard Deviation, FEV1 Forced Expiratory Volume in 1 s, BMI Body Mass Index
  2. aPost bronchodilation