Table 1.
Characteristics of patients of anaphylaxis who visited our emergency departments (n = 194)
| Characteristic | Value |
|---|---|
| Age, yr | 46 ± 17.1 |
| Male sex | 87 (44.8) |
| Type of visit | |
| Themselves | 99 (51.0) |
| Emergency rescue team | 52 (26.8) |
| Transfer from other hospital | 43 (22.2) |
| Time interval from symptom onset to visit, mina | 62 ± 70.5 |
| Suspicious cause | |
| Drug | 109 (56.2) |
| Food | 52 (26.8) |
| Insect | 19 (9.8) |
| Exercise | 3 (1.5) |
| Others | 4 (2.1) |
| Not assessed | 7 (3.6) |
| History of anaphylaxis | 47 (24.2) |
| Same suspicious cause | 33 (17.0) |
| Others | 5 (2.6) |
| Unknown | 9 (4.6) |
| History of allergic disease other than anaphylaxis | 77 (39.7) |
| Urticaria and/or angioedema | 42 (21.6) |
| Allergic rhinitis | 35 (18.0) |
| Asthma | 14 (7.2) |
| Others | 24 (12.4) |
| Symptoms | |
| Cutaneous | 172 (88.7) |
| Respiratory | 141 (72.7) |
| Hypotension | 114 (58.8) |
| Neurologic | 85 (43.8) |
| Gastrointestinal | 50 (25.8) |
| Cardiovascular (except hypotension) | 45 (23.2) |
Values are presented as mean ± SD or number (%).
a
Patients who were transferred from other hospitals were excluded.