Sáez-Francàs, Naia, Alegre, José, Calvo, Natalia et al. · Psychiatry research · 2012 · DOI
This study looked at whether people with ME/CFS also have ADHD (attention-deficit hyperactivity disorder), a condition that affects focus and attention. Researchers found that about 30% of ME/CFS patients had ADHD as children, and about 21% still had it as adults. People with ME/CFS who also had ADHD experienced worse depression and anxiety, more severe fatigue, and higher suicide risk than those without ADHD.
Understanding the relationship between ADHD and ME/CFS is important because it may help clinicians identify patients at higher risk for severe psychiatric complications and suicide. This comorbidity may also influence treatment approaches and prognosis. Recognizing ADHD in ME/CFS populations could improve overall patient care and mental health outcomes.
This study does not prove that ADHD causes ME/CFS or vice versa—it only shows these conditions frequently co-occur. The cross-sectional design cannot establish whether ADHD preceded ME/CFS onset or developed secondarily. The lack of a control group means we cannot determine if ADHD prevalence in ME/CFS is actually higher than in the general population.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
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