Table 1 Demographic data and clinical characteristics of the studied COPD patient’s groups

Age (years)

63.93 ± 9.55

63.81 ± 12.06

0.029

0.977

Body weight (kg)

80.64 ± 9.93

77.81 ± 9.01

0.819

0.420

Height (cm)

171.79 ± 8.27

170.56 ± 3.24

0.547

0.589

BMI (kg/m²)

27.52 ± 4.19

26.73 ± 2.82

0.615

0.543

Smoking index (pack/year)

34.39 ± 36.02

40.2 ± 35.55

0.444

0.661

mMRC scale

1.14 ± 0.86

2.31 ± 0.7

4.084

< 0.001*

CAT score

8.5 ± 4.74

18.56 ± 4.7

5.827

< 0.001*

Revised ABCD

1.43 ± 0.94

3.75 ± 0.58

8.281

< 0.001*

GOLD grades

2.07 ± 0.92

2.81 ± 0.91

2.217

0.035*

Number of exacerbations over the last year

0.43 ± 0.65

2.44 ± 1.03

6.284

< 0.001*