Introduction: This study aims to assess the economic impact of delays and inadequate diagnosis and treatment for neurodevelopmental disorders (NDDs) in France, affecting 2 to 3 million individuals. Neurodevelopmental disorders, including autism spectrum disorder (ASD), learning disabilities, and attention deficit hyperactivity disorder (ADHD), are often described as "invisible" disabilities, but they generate significant societal costs.
Method: The study was conducted with the support of Ashoka France as part of a collaboration between Goodwill-Management and the Aloïs Association.