Association of etiological factors across the extreme end and continuous variation in disordered eating in female Swedish twins.

ABSTRACT:

Background

Accumulating evidence suggests that many psychiatric disorders etiologically represent the extreme end of dimensionally distributed features rather than distinct entities. The extent to which this applies to eating disorders (EDs) is unknown.

Methods

We investigated if there is similar etiology in (a) the continuous distribution of the Eating Disorder Inventory-2 (EDI-2), (b) the extremes of EDI-2 score, and (c) registered ED diagnoses, in 1481 female twin pairs at age 18 years (born 1992-1999). EDI-2 scores were self-reported at age 18. ED diagnoses were identified through the Swedish National Patient Register, parent-reported treatment and/or self-reported purging behavior of a frequency and duration consistent with DSM-IV criteria. We differentiated between ano

SUBMITTER: Dinkler L 

PROVIDER: S-EPMC8108395 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature