Table 7.
Number of respondents from different regions of the world who find these causes of CSU as most common (n = 1098)a
| CSU causes | Geographical regions | Total % (n/total) |
||||
|---|---|---|---|---|---|---|
| NA % (n/total) |
LA % (n/total) |
EU % (n/total) |
AME % (n/total) |
AP % (n/total) |
||
| Idiopathic CSU | 97.5 (315/323) | 80.6 (150/186) | 88 (323/367) | 93.3 (56/60) | 89.5 (145/162) | 90.1 (989/1098) |
| Type-I-allergy | 27.5 (77/280) | 27.1 (46/170) | 17.9 (60/336) | 19.6 (11/56) | 39.6 (59/149) | 25.5 (253/991) |
| Autoimmune CSU | 64.4 (201/312) | 44.8 (81/181) | 46.8 (166/355) | 32.8 (19/58) | 54.1 (80/148) | 51.9 (547/1054) |
| Systemic disorders | 26.7 (79/296) | 29.1 (50/172) | 18.2 (62/340) | 12.3 (7/57) | 20.8 (31/149) | 22.6 (229/1014) |
| Malignancy | 2.4 (7/288) | 6.1 (10/165) | 6.6 (22/334) | 0 (0/56) | 3.6 (5/139) | 4.5 (44/982) |
| Chronic infection | 11.7 (34/290) | 32.8 (58/177) | 27.4 (95/347) | 13.6 (8/59) | 22.3 (33/148) | 22.3 (228/1021) |
| Food intolerance | 8.0 (23/289) | 19.7 (35/178) | 16.3 (56/343) | 22.4 (13/58) | 26.6 (41/154) | 16.4 (168/1022) |
AME Africa/Middle-East, AP Asia-Pacific, EU Europe, LA Latin America, NA North America. athe respondents could choose more than one answer