| |
Yes |
No |
| History of cigarette smoking |
O |
O |
| Coughing/wheezing/dyspnea and/or susceptibility to odors |
O |
O |
| Seasonal symptoms with negative skin prick/spIgE test |
O |
O |
| Mite sensitization with or without pollen sensitization |
O |
O |
| Little or no nasal hair |
O |
O |
| Outdoor occupation |
O |
O |
| Daily outdoor activity >1 hour |
O |
O |
| Metal allergy |
O |
O |
*yes to ≥ 1 item may be associated with an increased risk of asthma