Table 1 Patient demographic characteristics, spirometric values and clinical data

N

111

76

Age (years) ÷ mean (SD)

60.7(11.3)

57.98(11.03)

Male %

57.6

34.2

BMI (kg/m²) ÷ mean (SD)

22.14(4,33)

21.92(3,8)

FEV₁/FVC^a

0.56(0.16–0.68)

0.57 (0.26–0.69)

FEV₁% Predicted^a

65(18–78)

65(25–77)

FVC (%)^a

66(12)(1.66–5,12)

60(11,9)(1.66–5.12)

MRC (score)^a

2(0–4)

2(0–4)

CAT (score)^a

28(4–40)

15(5–40)

Current/former/non smoker (%)

34.2/10.8/54.05

22.4/10.8/64.5

Pack/year÷ (years) mean (SD)

14.48(23.75)

8.78(13.48)