Just 0.05% of UK adults aged 65 and over have an ADHD diagnosis, experts said, warning that older people remain significantly under-recognized despite a broader rise in diagnoses.
2.6 million people in the UK are estimated to have ADHD, but many older adults grew up when the condition was poorly understood and treated mainly as a childhood behavioral issue.
Retirement, bereavement and declining health can strip away coping structures in later life, clinicians said, exposing long-masked ADHD traits through anxiety, low mood or treatment-resistant depression.
Assessments are slowly rising among people in their 70s and 80s, often after a child or grandchild is diagnosed, and psychiatrists said a late diagnosis can still unlock support, treatment and long-missing explanations.
Is the UK's elder mental health crisis a hidden ADHD epidemic, misdiagnosed for decades as depression or early dementia?
With NHS wait times soaring, can technology stop a generation of seniors from being lost to ADHD misdiagnosis?
Mind the Gap: The Stark Disparity Between ADHD Prevalence and Diagnosis in England’s Older Population
Overview
Recent analyses in England reveal a significant gap between the number of people diagnosed with ADHD and the estimated prevalence, especially among older adults. This disparity highlights a long-standing issue of under-recognition, with many individuals—particularly in older age groups—remaining undiagnosed throughout their lives. The low diagnosis rates in older adults likely reflect historical differences in how ADHD was recognized and limited access to diagnosis in previous decades. As a result, a substantial portion of the older population has gone unrecognized, pointing to a systemic issue of historical under-diagnosis that continues to impact many today.