Clinical Characterization of Patients with Chronic Spontaneous Urticaria according to Anti-TPO IgE Levels

Table 2

Inducible urticaria according to challenge testing and anti-TPO IgE. Comparison of patients with or without anti-TPO IgE according inducible urticaria.

Inducible urticaria according to challenge testing	(+) anti-TPO IgE; ()	(-) anti-TPO IgE; ()
Patients with any inducible urticaria	10 (23.2%)	24 (42.1%)	0.03
Dermographism	7 (16.2%)	17 (29.8%)	0.03
Pressure	1 (2.3%)	5 (8.7%)	0.04
Ice	2 (4.6%)	10 (17.5%)	0.02
Water	0	0	N/A
Exercise/cholinergic	0	2	N/A