The Prevalence and Treatment of ADHD in Spain: A Retrospective Cohort Analysis.

Objective: Estimate the prevalence and incidence of Attention Deficit Hyperactivity Disorder (ADHD) and analyze variations in its treatment across Spain.

Method: Analyses were performed using IQVIA's clinical practice RealWorld Database, the electronic medical records of some 1 million patients from 2013 to 2018. MPH treatment was assessed using the Defined Daily Dose (DDD), MPH sales were extracted from IQVIA's Sell-Out database and the number of active psychiatrists from IQVIA's OneKey Database.