Table 1 Demographic details of study participants

Sex (F:M)

23:36

8:7

4:11

-

Age*

67 (45–75)

52 (38–62)

32 (19–75)

p < 0.0001

Pack years smoked*^§

34.9 (12.5-122.2)

29 (15–67)

0

ns

Current smokers (%)

41

100

0

-

ICS users (%)

67.8

-

-

-

Chronic Bronchitis (n) (%)

35 (59%)

-

-

-

FEV1% predicted^1a

61.6 (18.1)

95.7 (13.0)

116.7 (13.8)

p < 0.0001

FEV1/FVC %¹*

51.0 (28.9-67.0)

74.8 (70.5-80.8)

85.7 (72.6-101.6)

p < 0.0001

FEV1 % predicted^2a

64.5 (17.2)

98.64 (12.1)

117.9 (14.3)

p < 0.0001

FEV1/FVC %²*

57.1 (25.8-69.6)

73.0 (70.2-82.5)

86.1 (80.7-93.7)

p < 0.0001

IC (L)^1a

2.2 (0.7)

-

-

-

TLC% predicted¹*

102.3 (8.4-164.7)

-

-

-

KCO% predicted^1a

88.1 (25)

-

-

-

6MWT distance (m)*

387 (28–540)

-

-

-

SGRQ (total)^a

37 (19.8)

-

-

-

mMRC^a

1.2 (1)

-

-

-

CAT^a

17.5 (7.9)

-

-

-