Assessing undertreatment and overtreatment/misuse of ADHD medications in children and adolescents across continents: A systematic review and meta-analysis.

A controversy exists on whether there is an over or underuse of medications for Attention-Deficit/Hyperactivity Disorder (ADHD). We conducted the first meta-analysis to estimate the rate of ADHD pharmacological treatment in both diagnosed and undiagnosed individuals. Based on a pre-registered protocol (CRD42018085233), we searched a broad set of electronic databases and grey literature.

Exploring the association between attention-deficit/hyperactivity disorder and entrepreneurship.

Objective: To investigate the association between attention-deficit/hyperactivity disorder (ADHD) symptoms and entrepreneurial profiles and the effects of entrepreneurial characteristics in individuals who screen positive for ADHD and self-identify as entrepreneurs.

Methods: We sent 4,341 questionnaires by e-mail to applicants for a career development course for entrepreneurs. We used the propensity score covariate adjustment to balance differences between included and excluded individuals.