Patterns of substance use and initiation timing in adults with substance abuse: a comparison between those with and without attention deficit hyperactivity disorder.

Background: Attention deficit hyperactivity disorder (ADHD) is a prevalent psychiatric disorder in childhood and adolescence, persisting into adulthood in 60% of cases, with an adult age prevalence rate of 4%. substance use disorder (SUD) is a recognized comorbidity with significant social and financial implications, necessitating detailed investigation.

Materials And Methods: This longitudinal study focused on adults with SUD in addiction detention in two camps including Toska and Chitgar in the west and south of Tehran during 2021-2022.