Lawrie, S M, Manders, D N, Geddes, J R et al. · Psychological medicine · 1997 · DOI
This study looked at how many people develop chronic fatigue in the general population (rather than just in doctor's offices), and what factors might increase the risk. Researchers found that people who were already somewhat fatigued before the study began were more likely to develop chronic fatigue later on. Interestingly, emotional difficulties and psychiatric conditions appeared less common in ME/CFS patients when researchers carefully adjusted for fatigue itself.
This study is important because it demonstrates that many psychiatric associations found in clinical ME/CFS studies may result from selection bias—people with both fatigue and psychiatric symptoms are more likely to seek medical care. By recruiting from the general population rather than clinics, this research helps clarify what ME/CFS actually looks like when studied fairly, reducing misconceptions that the condition is primarily psychiatric.
This study does not prove that psychiatric disorders cause ME/CFS or vice versa; it shows they often co-occur but cannot establish causation with its cross-sectional design. The very small number of confirmed CFS cases (n=2) limits confidence in the specific findings about CFS, and the study was conducted in 1997 using older diagnostic criteria, so findings may not fully apply to current ME/CFS definitions. The study also does not examine post-exertional malaise or other core ME/CFS symptoms in detail.
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
Lawrie, S M, Manders, D N, Geddes, J R, & Pelosi, A J (1997). A population-based incidence study of chronic fatigue.. Psychological medicine. https://doi.org/10.1017/s0033291796004357
BibTeX
@article{mecfsatlas-lawrie-1997-population-based,
author = {Lawrie, S M and Manders, D N and Geddes, J R and Pelosi, A J},
title = {A population-based incidence study of chronic fatigue.},
journal = {Psychological medicine},
year = {1997},
doi = {10.1017/s0033291796004357},
note = {PubMed: 9089827},
url = {https://www.mecfsatlas.com/evidence/lawrie-1997-population-based},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-28. https://www.mecfsatlas.com/evidence/lawrie-1997-population-based
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