Gill, Anna C, Dosen, Ana, Ziegler, John B · Archives of pediatrics & adolescent medicine · 2004 · DOI
This study followed teenagers with severe fatigue for up to 8 years to see how many got better. Teenagers who had been fatigued for less than 6 months all recovered completely. Those diagnosed with ME/CFS had worse outcomes, with less than a quarter showing near-complete improvement, though some did get partially better. Being admitted to the hospital did not change whether teenagers recovered or not.
This study provides important long-term outcome data for adolescent ME/CFS, showing that recovery rates are modest even years after illness onset. Understanding that shorter duration of fatigue predicts better outcomes and that hospitalization does not improve prognosis may help guide patient expectations and treatment decisions for young people with ME/CFS.
This study does not prove what causes ME/CFS in adolescents or why some recover while others do not. It also cannot establish whether specific treatments, lifestyle changes, or any intervention affects outcomes, since treatment data were not collected or analyzed. The small sample and high dropout rate limit generalizability of these 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 →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Gill, Anna C, Dosen, Ana, & Ziegler, John B (2004). Chronic fatigue syndrome in adolescents: a follow-up study.. Archives of pediatrics & adolescent medicine. https://doi.org/10.1001/archpedi.158.3.225
BibTeX
@article{mecfsatlas-gill-2004-chronic-fatigue,
author = {Gill, Anna C and Dosen, Ana and Ziegler, John B},
title = {Chronic fatigue syndrome in adolescents: a follow-up study.},
journal = {Archives of pediatrics & adolescent medicine},
year = {2004},
doi = {10.1001/archpedi.158.3.225},
note = {PubMed: 14993080},
url = {https://www.mecfsatlas.com/evidence/gill-2004-chronic-fatigue},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/gill-2004-chronic-fatigue
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