Cost structure in specialist mental healthcare: what are the main drivers of the most expensive episodes?

Background: Mental disorders are one of the costliest conditions to treat in Norway, and research into the costs of specialist mental healthcare are needed. The purpose of this article is to present a cost structure and to investigate the variables that have the greatest impact on high-cost episodes.

Methods: Patient-level cost data and clinic information during 2018-2021 were analyzed (N = 180,220).