Table 2. Distribution of the patients according to causal hypotheses for urti- caria-angiodema.

Cause	n = 125 (100%)
Not ascertained*	78 (62.4)
Infection†	16 (12.8)
Inhalant	8 (6.7)
Medication	5 (4.0)
Cholinergic	4 (3.2)
Local pressure	4 (3.2)
Intestinal parasitosis	4 (3.2)
Thyropathy	3 (2.4)
Food‡	1 (0.8)
Cold	1 (0.8)
Urticarial vasculitis	1 (0.8)

^* p = 0.02;

^† p = 0.001;

^‡ p = 0.009.