Table 2. Correlation^a of autoantibody level, eosinophil counts and disease activity^b in untreated BP patients with total IgE>400 IU (n = 16).

	BP180 IgG	BP230 IgG	Total IgEc	BP180 IgEd	BP Index/BPDAIe
BP180 IgG	–	0.559*	0.512*	0.738**	0.782**/0.667*
BP230 IgG	0.559*	–	0.656**	0.309	0.582*/0.01
Total IgE	0.512*	0.656**	–	0.438	0.414**/0.681
BP180 IgE	0.738**	0.309	0.438	–	0.577*/0.739
Eos count	0.535*	0.433	0.449	0.642*	0.462/0.595

^adetermined using Spearman’s rank correlation coefficient (r) and p = *<0.05, **<0.01, ***0.001.

^bdisease activity was evaluated using one or both methods (BP index/BPDAI) as described in Methods.

^creported as IU/ml, normal range ≤100.

^dexpressed as Index Units, positive test ≥19.

^ereported as BP index/BPDAI as described in the Methods.