Assortative Mating Across the Full Spectrum of Mental Disorders: A Nationwide Finnish Register Study.

ABSTRACT:

Background

Previous research has shown assortative mating across various psychiatric disorders; however, their definitions of partnership have often been limited, and the timing of relationship formation has been imprecise. In this study, we aimed to comprehensively examine assortative mating across the full spectrum of mental disorders using population-wide register data from Finland that include information on the formation of both marriages and cohabiting unions.

Methods

We used nationwide data on all cohabitations and marriages between 2000 and 2020 from the Finnish Population Register (n = 1,271,242 partnerships). Broad and specific categories of mental disorder diagnoses were retrieved from both primary and secondary health care registers in Finland. We calculat

SUBMITTER: Golovina K 

PROVIDER: S-EPMC12719663 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature