Table. Demographic Characteristics and History of Highly Allergic Patients.
| Characteristic | Participants, No. (%) (N = 429) |
|---|---|
| Age, mean (SD), y | 52 (16) |
| Female | 304 (70.9) |
| Male | 125 (29.1) |
| Prior allergies | 429 (100) |
| Drug allergy | 258 (60.1) |
| Injectable drug allergy | 118 (27.5) |
| Insect bite allergy | 60 (14.0) |
| Food allergy | 134 (31.2) |
| Allergic rhinitis | 160 (37.3) |
| Asthma | 96 (22.4) |
| Multiple allergiesa | 130 (30.3) |
| Prior anaphylaxis (total) | 271 (63.2) |
| Drugs | 141 (32.9) |
| Insect bite | 59 (13.8) |
| Food | 68 (15.9) |
| Multiple anaphylaxis | 49 (11.4) |
| Adrenalin syringe carriers | 95 (22.1) |
| Permanent antihistamine use | 62 (14.5) |
a
Multiple allergies were defined by 2 or more of the following: (1) drug allergy regardless of number of compounds, (2) insect sting allergy, (3) food allergy, and (4) allergic rhinitis and/or asthma.