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Table 2 Baseline characteristics of COPD patients and healthy volunteers.

From: Glucocorticoid receptor gene polymorphisms and potential association to chronic obstructive pulmonary disease susceptibility and severity

Parameter COPD Healthy volunteers
Patients/healthy volunteers (n) 207 106
Age (± SD) 63.3 ± 10.8 63.9 ± 11.1
Sex (male : female) 136:71 47:59
BMI 26.5 ± 0.5 26.9 ± 0.4
FEV1 (l) 1.4 ± 0.7 2.7 ± 0.7
FEV1 %predicted 50.5 ± 20.2 101.8 ± 14.1
FVC (l) 2.5 ± 0, 9 3.4 ± 0.9
FVC %predicted 69.9 ± 19.1 103.1 ± 16.0
FEV1/FVC 57.8 ± 14.0 80.7 ± 6.6
GOLD classification of groups   Not applicable
   1. Chronic bronchitis n (%) 23 (11.1)  
   2. GOLD 1 n (%) 8 (3.9)  
   3. GOLD 2 n (%) 66 (31.9)  
   4. GOLD 3 n (%) 50 (24.2)  
   5. GOLD 4 n (%) 60 (28.9)