Table 3. Severity of anaphylaxis and potential risk factors.
| Severity | Mild/moderate n=986 |
Severe n=966 |
P value Mild/moderate vs severe |
|---|---|---|---|
| Age, year, mean (SD) | 27 (14) | 34 (14) | <0.001 |
| Triggers | n (%)a | n (%)b | |
| Food | 764 (77) | 737 (76) | 0.533 |
| Drug | 69 (7) | 74 (8) | 0.575 |
| Insect | 4 (0.4) | 10 (1) | ND |
| Idiopathic | 149 (15) | 145 (15) | 0.95 |
| Food triggers | n (%)c | n (%)d | |
| Wheat | 138 (18) | 419 (57) | <0.001 |
| Fruits/vegetables | 236 (31) | 71 (10) | <0.001 |
| Legume/peanut | 52 (7) | 23 (3) | 0.001 |
| Tree nuts/seeds | 77 (10) | 30 (4) | <0.001 |
| Seafood | 20 (3) | 26 (4) | 0.334 |
| Milk | 16 (2) | 6 (1) | ND |
| Spices | 19 (2) | 6 (1) | ND |
Bold denotes a significant P value.
a, among 986 cases of mild/moderate anaphylaxis; b, among 966 cases of severe anaphylaxis; c, among 764 cases of mild/moderate food-induced anaphylaxis; d, among 737 cases of severe food-induced anaphylaxis.
N, number; ND, Not different.