Table 1 Demographics, triggers and associated conditions of patients with CSU
Number of patients (%) n = 72 | |
|---|---|
Sex | |
Male | 13 (18) |
Female | 59 (82) |
Ethnicity | |
Caucasian | 39 (54) |
Asian | 25 (35) |
Middle Eastern | 5 (7) |
First Nations | 2 (3) |
Hispanic | 1 (1) |
Recurrence of symptoms after initial remission | 22 (31) |
Angioedema | 41 (57) |
Patient reported provoking factors | |
Dermatographia | 34 (47) |
Stress | 27 (38) |
Heat | 25 (35) |
Cold | 10 (14) |
Foods | 8 (11) |
NSAIDs | 8 (11) |
Exercise | 7 (10) |
Alcohol | 5 (7) |
Sunlight | 2 (3) |
Sleep disturbance | 54 (75) |
Emergency room visits | 29 (43) |
Autoimmune disease | 14 (19) |
Hypothyroidism | 6 (8) |
Rheumatoid arthritis | 5 (7) |
Crohn’s disease | 1 (1) |
Vitiligo | 1 (1) |
Celiac disease | 1 (1) |
HLA-B27 Spondyloarthopathy | 1 (1) |
Drug allergy | 22 (31) |
Family history | 10 (14) |