|
Reference (author, year)
|
Region
|
Definition of CSU in weeks
|
Number of CSU patients undergoing testing
|
Number of healthy controls undergoing testing
|
% prevalence of IgG anti-IgE autoantibody in study group
|
Functional assay (F) or non-functional assay (N)
|
% prevalence of IgG anti-IgE autoantibody in control group
|
Number of antihistamine (AH) and/or systemic corticosteroid (SC)-free days
|
|---|
|
Gruber, 1988 [100]
|
United States
|
–
|
6
|
32
|
50
|
N
|
0
|
Not stated
|
|
Fiebiger, 1995 [11]
|
Austria
|
> 8
|
32
|
15
|
69
|
N
|
26
|
Not stated
|
|
Tong, 1997 [101]
|
United States
|
> 12
|
50
|
20
|
12
|
F
|
5
|
2 (AH)
|
|
Eckman, 2008 [94]
|
United States
|
> 6
|
73
|
23
|
45
|
N
|
30
|
Not stated
|
|
Rojanapremsuk, 2015 [102]
|
United States
|
> 6
|
438
|
–
|
33
|
N
|
–
|
Not stated
|
- AH antihistamine, SC systemic corticosteroids
