Screening for intellectual disabilities: a validation of the Hayes Ability Screening Index for in-patients with substance use disorder.

Abstract

There is a reason to believe that many individuals with substance use disorder (SUD) in contact with services have an undiagnosed intellectual disability (ID). Assessing ID in persons with SUD can be challenging due to the influence of substances, time consumption, and specific requirements for the education of the assessor. On the other hand, an undiagnosed condition may lead to a lack of treatment adjustment and may result in drop-out from treatment or lack of treatment effect. There is a need for a time-saving, valid instrument to detect possible ID among people with SUD.