Supplementary Figure 3.

Allergy and/or atopy and serum IgE levels in IgG4-RD patients and healthy control subjects. (A) Bar chart showing the number of IgG4-RD patients and healthy control subjects with (black) or without (grey) a history of allergy and/or atopy. (B) Dot plot showing serum IgE concentration (kIU/L) in IgG4-RD patients with and without a history of allergy and/or atopy. Dashed line is the serum IgE upper limit of normal (≥125 kIU/L). Mann-Whitney P values, where *P < .05, ****P < .0001.