Table 1.

Characteristics of Case and Control Subjects

	All Participants			Participants With Serum Available
Characteristic	ACEi-Associated Angioedema (n=50)	ACEi-Exposed Control Subjects (n=176)	P	ACEi-Associated Angioedema (n=38)	ACEi-Exposed Control Subjects (n=170)	P
Black:white, n	20:30	88:88	0.21	13:25	87:83	0.06
Male:female, n	24:26	85:91	0.97	16:22	83:87	0.45
Age, mean±SD, y	58.6±14.4	58.0±11.1	0.78	59.7±14.7	58.0±11.1	0.52
Nonsmoker:smoker:unknown, n	32:16:2	149:27:0	0.005	27:11	144:26	0.047
Nondiabetic:diabetic:unknown, n	40:9:1	112:64:0	0.02	32:6	60:110	0.02
ACEi:off ACEi, n	15:35	158:18	<0.001	8:30	152:18	<0.001