Table 1

Characteristics of the study population Values are numbers (proportion) or mean (SD); OAD = obstructive airway disease

Overall

No OAD or restrictive pattern

Reversible OAD

Not reversible OAD

n (%)

n (%)

n (%)

n (%)


Total study population

60 (100)

23 (38)

27 (45)

10 (17)

Female

40 (67)

15 (65)

19 (70)

6 (60)

Age [mean (SD)]

46 (18)

42 (18)

46 (17)

54 (18)

Have you had wheezing in your chest (yes)

39 (65)

11 (48)

22 (82)

6 (60)

Do you sometimes have dyspnea (yes)

35 (58)

12 (52)

16 (59)

7 (70)

Do you often cough (yes)

26 (43)

15 (65)

9 (33)

2 (20)

Do you often have expectoration (yes)

22 (37)

7 (30)

11 (41)

4 (40)

Wheezing when not having a cold (yes)

25 (42)

7 (30)

15 (56)

3 (30)

Breathless when wheezing was present (yes)

22 (37)

7 (30)

11 (41)

4 (40)

Have you been woken up with a feeling of tightness in your chest (yes)

14 (23)

6 (26)

5 (19)

3 (30)

Have you been woken up by an attack of dyspnea (yes)

13 (22)

6 (26)

7 (26)

0 (0)

Have you been woken up by an attack of coughing (yes)

39 (65)

16 (70)

17 (63)

6 (60)

Do you have any nasal allergies (yes)

25 (42)

10 (43)

12 (44)

3 (30)

Do you often have common cold (yes)

22 (37)

8 (35)

8 (30)

6 (60)

Does it often take longer than 10 days to recover from a common cold (yes)

29 (48)

10 (43)

12 (44)

7 (70)

Do you smoke/Did you smoke (yes)

35 (58)

12 (52)

16 (59)

7 (70)

How much do you smoke [mean in pack year (SD)]

13 (15)

13 (10)

9 (10)

21 (26)


Schneider et al. BMC Family Practice 2006 7:28   doi:10.1186/1471-2296-7-28

Open Data