AAViNor: ANCA-associated vasculitis in Oslo (AAV)
In this epidemiological study, the primary objective is to gain a comprehensive understanding of the distribution, course, and dynamics of ANCA associated vasculitides within our local population (Oslo County) during the period 2000-2016 by establishing a population-based cohort. In this cohort we want to identify risk factors for four clinically important disease outcomes: clinical remission, relapse rate, development of organ damage and death. Moreover, our study seeks to investigate the prevalence and incidence trends throughout this 16-year timeframe. Another aim is to test the sensitivity of the newly published 2022 EULAR/ACR classification criteria compared to the European Medicines Agency (EMA) algorithm from 2007. By a better understanding of these relapsing- remitting diseases course we ultimately wish to improve patient follow up and outcomes.