Jones, James F, Nisenbaum, Rosane, Solomon, Laura et al. · The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2004 · DOI
Researchers surveyed families in Kansas to see how many adolescents (ages 12-17) had chronic fatigue syndrome (CFS) or other long-term fatigue illnesses. They found that CFS is much less common in teenagers than in adults. When both teens and their parents were carefully evaluated by doctors, none of the participating teenagers actually met the full definition of CFS, though some had prolonged fatigue from other causes.
This study addresses a critical gap in understanding ME/CFS epidemiology in younger populations. It highlights that diagnostic criteria application and concordance between parent and patient reports are essential for accurate case identification in adolescents, informing clinical practice and future research design in pediatric ME/CFS.
This study does not establish whether CFS truly is rarer in adolescents or whether the low case count reflects diagnostic/ascertainment challenges, parental underrecognition, or differences in how the illness manifests in youth. It cannot determine causation for any fatigue presentations, only prevalence of identified cases. The small clinical evaluation sample (n=11) limits generalizability of clinical findings.
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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