A Comparative Study of PDA and Non-PDA Autism: Exploring Distinctive Traits in Adults

Abstract Pathological Demand Avoidance (PDA) is lifelong condition that is widely understood as a profile on the autism spectrum that has distinct characteristics beyond the broader set of traits associated with autism. This study, which was carried out in 2016, investigates the differences between PDA adults and those with a non-PDA autistic profile, focusing on 155 traits that emerged from a community-driven inquiry. Using data from 290 self-diagnosed PDA adults and 90 non-PDA autistic adults, this analysis explores significant differences between these groups, contributing to a clearer understanding of PDA as a unique profile within the autism spectrum. Introduction Pathological Demand Avoidance (PDA) is often considered an Autism Spectrum Condition (ASC), although it is distinguished by an extreme avoidance of everyday demands, heightened anxiety, and unique social strategies. Despite increasing recognition, particularly in children, research into adult PDA remains limited. To addr...