FCGR2B and Lewy body dementia: In the DLB group there were significant positive correlations between the following markers: CD68 with CD64 (P = 0.002), CD16 (P = 0.007) and CD32b (P = 0.004); CD32a with Iba1 (P = 0.001); CD16 with CD64 (P < 0.001); CD68 with CD32b (P = 0.004) and IL4R (P = 0.001); and HLA-DR with IL4R (P < 0.001).