Emphysema predominant COPD (n = 90)

Chronic bronchitis predominant COPD (n = 75)

p-Value

Male (n&%)

78 (87%)

63 (84%)

NS

Age

67 ± 7.4

62 ± 9.3

NS

Smoking index

47 ± 3

49 ± 4

NS

BMI

23 ± 2.1

32 ± 3.4

0.04

FEV₁ % pred

40 ± 10.2

51 ± 13.2

0.03

FVC % pred

73 ± 2.3

68 ± 4.4

NS

FEV₁/FVC

48 ± 4.2

53 ± 3.2

0.05

D_L,CO % pred

42 ± 2.2

70

0.000

TLC % pred

123 ± 10

89 ± 14

0.05

Dypsnea

0.03

I

10

18

II

25

17

III

26

15

IV

19

12

V

10

13