Prevalence of neurodivergence in neuropsychiatric conditions: cross-sectional study

The increasing recognition of neurodivergent conditions in healthcare settings in general highlights the necessity for better understanding and management in neuropsychiatric settings. This study aims to investigate the prevalence and co-occurrence of neurodivergent conditions and traits among patients with neuropsychiatric conditions. A descriptive quantitative cross-sectional study was conducted at a tertiary neuropsychiatric clinic. Participants included 166 consecutive patients, assessed using the Comprehensive Autistic Trait Inventory (CATI) and the Adult ADHD Self-Report Scale (ASRS, version 1.1), with demographic characteristics considered.

In our final analysed cohort (n = 79), among patients with functional neurological disorder (FND) 11% had a confirmed diagnosis of adult spectrum disorder (ASD), 17% were believed to have undiagnosed ASD and 55% exhibited clinically significant ASD traits on the CATI tool. Additionally, 13% had a confirmed diagnosis of attention-deficit hyperactivity disorder (ADHD), 25% were believed to have undiagnosed ADHD and 67% exhibited clinically significant ADHD traits on the ASRS tool.

The findings indicate a higher than expected prevalence of neurodivergent conditions in people with FND. Enhanced early identification and tailored treatment approaches are likely to be crucial for improving clinical outcomes and patient experiences in neuropsychiatric settings.