Demographic factors

Control

(n=109)

Asthma alone

(n=99)

CB

(n=100)

COPD

(n=98)

p-value

Age (years)

48.5±11.5

46.9±12.4

48.6±12.5

49.6±11.3

0.44

Age

<40 years

≥ 40 years

36 (33%)

73 (67%)

35 (35.4%)                          64 (64.6%)

35 (35%)

65 (65%)

26 (26.5%)

72 (73.5%)

0.52

Gender

Female (n=202)

Male (n=204)

59 (54.1%)

50 (45.9%)

53 (53.5%)

46 (46.5%)

45 (45%)

55 (55%)

45 (45.9%)

53 (54.1%)

0.41

BMI (Kg/m²)

22.3±3.8

21.6±4.1

21.7±4.0

22.2±4.0

0.55

BMI category

Underweight (n=82)

Normal weight (n=235)

Overweight (n=89)

18 (16.5%)

63 (57.8%)

28 (25.7%)

23 (23.2%)

56 (56.6%)

20 (20.2%)

23 (23%)

58 (58%)

19 (19%)

18 (18.4%)

58 (59.2%)

22 (22.4%)

0.80

Education

Primary level (n=190)

Secondary level (n=146)

Graduate (n=70)

51 (46.8%)

39 (35.8%)

19 (17.4%)

39 (39.4%)

38 (38.4%)

22 (22.2%)

48 (48%)

40 (40%)

12 (12%)

52 (53.1%)

29 (29.6%)

17 (17.3%)

0.34