IL-1β concentration was significantly different between groups (χ2(2)=15.030, p=0.001), with IL-1β-positive cases more prevalent in the DLB group (54.8%) compared with controls (16.1%, p=0.020), and AD (16.1%, p=0.003), following adjustment for age and gender (table 3). The gene discussed is IL1B; the disease is Lewy body dementia.