Collin, Simon M, Norris, Tom, Nuevo, Roberto et al. · Pediatrics · 2016 · DOI
This study found that about 1.9% of 16-year-olds in the UK experience chronic fatigue syndrome (CFS)—a condition causing severe, long-lasting tiredness that lasts at least 6 months and cannot be explained by other illnesses. Girls were nearly twice as likely as boys to have CFS at this age, and young people experiencing more family stress or difficulties were at higher risk. Children with CFS missed significantly more school than their peers.
This large population-based study provides robust prevalence estimates for CFS in adolescents and identifies family adversity as a modifiable risk factor, potentially informing prevention and early intervention strategies. Understanding gender and psychosocial risk factors helps clinicians identify vulnerable youth and challenges assumptions that CFS is primarily a psychiatric condition.
This study does not establish causation—family adversity may contribute to CFS risk, but the direction and mechanism of this relationship remain unclear. The study cannot distinguish whether depressive symptoms are a consequence of CFS or a separate comorbidity, and reliance on parental report may miss cases or misclassify symptoms compared to direct clinical assessment.
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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