|
Age range (years)
|
|
0–20
|
202 (28.0)
|
|
21–40
|
318 (44.0)
|
|
41–60
|
159 (22.0)
|
|
> 60
|
44 (6.0)
|
|
Sex: male/female
|
384/339 (53.1/46.8)
|
|
Family history of atopy (yes/no)a
|
358/365 (49.5/50.4)
|
|
Intermittent/mild persistent asthmab
|
137 (17.2)
|
|
Moderate/severe persistent asthmab
|
80 (10.1)
|
|
Intermittent/mild persistent rhinitisb
|
274 (34.4)
|
|
Moderate/severe persistent rhinitisb
|
305 (38.3)
|
|
Allergic sensitization to common pets
|
|
Dog
|
160 (22.1)
|
|
Cat
|
256 (35.4)
|
|
Dog/cat
|
307 (42.5)
|
|
Allergic sensitization only to cat/dog
|
0 (0)
|
|
Age of onset of respiratory symptoms (years)
|
|
0–20
|
493 (68.2)
|
|
21–40
|
176 (24.3)
|
|
41–60
|
51 (7.1)
|
|
> 60
|
3 (0.4)
|
|
Smoking habit
|
|
Never
|
479 (66.3)
|
|
Actual
|
105 (14.5)
|
|
Past
|
79 (10.9)
|
|
Passive smoke only
|
60 (8.3)
|
|
Previous immunotherapy
|
|
No
|
622 (86.0)
|
|
Yes (none for pets)
|
101 (14.0)
|
