Table 1. pDCs presence and MxA expression in pemphigus versus pemphigoid group (%).

Entity (case no.)	Age (yr)	Gender (ratio)	Frequency of pDC infiltration	pDC score*				MxA score†
				0	1	2	3	0	1	2
Pemphigus (n=46)	6~81	20 M:26 F	46	0	16	29	1	0	44	2
Pemphigoid (n=32)	47~91	14 M:18 F	23	9	17	6	0	9	23	0
p-value‡	-	-	<0.05	<0.05				<0.05

pDCs: plasmacytoid dendritic cells, MxA: myxovirus resistance A, M: male, F: female. ^*BDCA2⁺ pDC content was scored as percentage of total mononuclear infiltrate: 0 (no positive cells), 1 (1%~10% positive cells), 2 (10%~50% positive cells), 3 (>50% positive cells). ^†MxA staining was scored as: 0=negative, 1=patchy/weak, and 2=diffuse. ^‡Statistical analysis was performed by using the Mann-Whitney test to analyze statistical differences in pDC and MxA scores between the 2 groups. A two-tailed p-value of <0.05 was considered statistically significant. Normal skin tissue served as negative control and cutaneous lupus erythematosus served as positive control.