Table 2 The distribution of trigger factors by attack locations
From: The influence of trigger factors on hereditary angioedema due to C1-inhibitor deficiency
Attacks with known trigger factor | Subcutaneous episodes | Abdominal episodes | Upper airway episodes | |
|---|---|---|---|---|
Mental stress | 21 | 15 | 27 | 22 |
Menstruation | 18 | 11 | 17 | 26 |
Physical exertion | 17 | 24 | 13 | - |
Weather changes | 15 | 14 | 15 | 8 |
Infection | 11 | 10 | 12 | 26 |
Mechanical trauma | 11 | 17 | 1 | 7 |
Fatigue | 6 | 4 | 8 | 8 |
Dental procedures | - | 2 | - | - |
Foodstuffs | - | 2 | 6 | - |
Other | 3 | 1 | 1 | 3 |