Table 2 Characteristics of responders reporting physician-diagnosed asthma classified as allergic or non-allergic
From: Age-specific incidence of allergic and non-allergic asthma
Responders with physician-diagnosed asthma and allergic rhinitis | Responders with physician-diagnosed asthma without allergic rhinitis | p-value | ||
|---|---|---|---|---|
Total | N (%) | 230 (51.7) | 215 (48.3) | |
Agea | Years | 44 (32–59) | 58 (39–66) | < 0.001 |
Female | N (%) | 137 (59.6) | 116 (54.0) | 0.25 |
BMIa | kg/m2 | 25.7 (23.2–29.6) | 27.4 (23.8–31.5) | 0.046 |
Smoking status | N (%) | 0.034 | ||
Current | 42 (18.3) | 46 (21.4) | ||
Ex | 67 (29.1) | 82 (38.1) | ||
Never | 121 (52.6) | 87 (40.5) | ||
Allergic rhinitis | N (%) | |||
Allergic rhinitis due to pollen only | 64 (27.8) | |||
Allergic rhinitis due to non-pollen only | 35 (15.2) | |||
Allergic rhinitis due to pollen and non-pollen | 131 (57.0) | |||
Age at asthma diagnosisa | Years | 19 (7–33) | 35 (18–50) | < 0.001 |