Perceived Stress Is Associated With Lifetime ADHD Symptom Reporting Over and Above Anxiety and Depression: Implications for Psychiatric Evaluation and Treatment

INTRODUCTION: Diagnosing attention deficit/hyperactivity disorder (ADHD) among adults is challenging, given reliance on retrospective symptom reporting and the overlap of core, nonspecific diagnostic symptoms with other psychiatric disorders such as depression and anxiety. This study examined the effect of perceived stress on ADHD symptom reporting. METHODS: Cross-sectional data from 638 diverse adult outpatients referred for ADHD neuropsychological evaluation, who were administered the Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI-II), Perceived Stress Scale (PSS), and Clinical Assessment of Attention Deficit-Adult (CAT-A), were analyzed. Linear regressions were conducted with BDI-II/BAI (block 1) and PSS (block 2) as predictor variables and ADHD symptom endorsement in childhood and adulthood (CAT-A) as the dependent variable. RESULTS: PSS/BDI-II (r=0.648) and PSS/BAI (r=0.523) were moderately correlated. BDI-II and BAI significantly predicted overall ADHD symptom endorsement and current/adult symptom reporting, whereas only BAI predicted childhood symptoms. After entering the PSS in block 2, all models remained significant (P