Pollet, C, Natelson, B H, Lange, G et al. · Journal of medicine · 1998
This study looked at 72 Gulf War veterans who reported severe fatigue and/or chemical sensitivity to see if they had ME/CFS or multiple chemical sensitivity. The researchers found that 33 veterans met the criteria for ME/CFS, and compared them to 95 non-veterans who also had ME/CFS. Interestingly, the veterans' ME/CFS appeared to be milder than the civilians' version, based on symptom severity, activity levels, and ability to work.
This study contributes important epidemiological data on ME/CFS in a unique population (Gulf War veterans) and reveals potential differences in disease severity between occupational/environmental cohorts and civilian populations. Understanding whether ME/CFS manifestations vary by exposure history or population could inform prognosis, treatment approaches, and recognition of the condition in underdiagnosed groups.
This study does not prove that Gulf War exposure caused milder ME/CFS; the cross-sectional design cannot establish causation or temporal relationships. The apparent mildness in veterans could reflect differences in reporting bias, healthcare-seeking behavior, demographic factors, or selection bias rather than true disease differences. Additionally, the study does not clarify whether the same case definitions equally captured disease in both groups.
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
Pollet, C, Natelson, B H, Lange, G, Tiersky, L, DeLuca, J, Policastro, T, et al. (1998). Medical evaluation of Persian Gulf veterans with fatigue and/or chemical sensitivity.. Journal of medicine. https://pubmed.ncbi.nlm.nih.gov/9865452/
BibTeX
@article{mecfsatlas-pollet-1998-medical-evaluation,
author = {Pollet, C and Natelson, B H and Lange, G and Tiersky, L and DeLuca, J and Policastro, T and Desai, P and Ottenweller, J E and Korn, L and Fiedler, N and Kipen, H},
title = {Medical evaluation of Persian Gulf veterans with fatigue and/or chemical sensitivity.},
journal = {Journal of medicine},
year = {1998},
note = {PubMed: 9865452},
url = {https://www.mecfsatlas.com/evidence/pollet-1998-medical-evaluation},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/pollet-1998-medical-evaluation
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