Is There a Relation between ABO Blood Groups and Clinical Outcome in Patients with Pemphigoid? A Case-Control Study

Table 3

Distribution of blood group and Rh in different pemphigoid types and control group.

Blood group	A		B		O		AB		Rh+		Rh−
	Number	%	Number	%	Number	%	Number	%	Number	%	Number	%
Mucous membrane pemphigoid	3	42.9	2	28.6	2	28.6	0	0.0	5	71.4	2	28.6
Bullous pemphigoid	45	30.8	40	27.4	48	32.9	13	8.9	124	84.9	22	15.1
Pemphigoid gestationis	3	50.0	2	33.3	1	16.7	0	0.0	5	83.3	1	16.7
Control group	52	34.2	32	21.1	58	38.2	10	6.6	131	86.2	21	13.8