Geographic variation in the utilisation of specialist healthcare for patients with severe mental illness in Norway: a population-based registry study.

Purpose: The aim of this study is to measure geographic variations in mental healthcare service utilisation among patients with severe mental illness in Norway.

Method: We analysed data from the Norwegian patient registry for 2014-2018 for patients with severe mental illness. The outcomes measured in this study were: outpatient contact, admission, bed days and total contact rates.