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) |