DIREVA (Diabetes register in Vasa) is a regional project in western Finland. All diabetes patients at all ages in the Vasa region will be included during and the aim is to create a permanent register. The aim of the registry is to describe the spectrum of diabetes subgroups in western Finland and to link genetic and phenotypic information at diagnosis of diabetes to outcome data and data on response to treatment. The study is coordinated by the Central hospital in Vasa. In the region, 2 hospitals, primary care centers from 15 counties and 3 larger private care centers participate in the register.