IBM patients had the most differentially overexpressed markers of type 1 inflammation (12), of which 2/3 were also differentially overexpressed in one or more other groups (CCL4, CXCL9, CXCL10, CXCL11, CXCR3, IFNG, IL27, and LTA). Here, CXCL9 is linked to inclusion body myositis.