Feasibility and performance of minimal-volume capillary blood screening for type 1 diabetes and coeliac disease autoantibodies across all age groups: the UNISCREEN population study

Population-wide autoimmunity screening across all age groups is feasible using minimally invasive capillary sampling and advanced immunoassay technology. The substantial prevalence of autoimmunity in clinically unaffected individuals (2.3% for islet autoantibodies, 3.2% for coeliac disease autoantibodies) suggests significant opportunities for earlier detection and intervention. Age-related differences in antibody levels and the detection of multiple autoantibodies in adults without diabetes warrant longitudinal follow-up to understand natural history and progression risk in older populations.