The research group focuses on descriptive epidemiology (incidence and disease course) and analytical epidemiology (causal relationships including genetic predisposition) in rheumatic diseases with juvenile and adult onset. We also focus on outcomes including patient reported outcome measures, organ manifestations and physical fitness in rheumatic disease. We achieve this by studying and combining various data sources that include quality- and research registries, biobanks, health surveys, central health registries, cohort studies and clinical cohorts. We work with epidemiological, register-based, and "big data" analyzes, including genetic analyzes and machine learning as well as interventions. This is done in close collaboration with relevant national and international expert groups and with close user participation.