Cited by 1,211Psychosomatic Disorders and Their TreatmentsFibromyalgia and Chronic Fatigue Syndrome ResearchGastrointestinal motility and disorders

Functional somatic syndromes: one or many?

Wessely, S, Nimnuan, C, Sharpe, M·1999·The Lancet

Abstract

We review the concept and importance of functional somatic symptoms and syndromes such as irritable bowel syndrome and chronic fatigue syndrome. On the basis of a literature review, we conclude that a substantial overlap exists between the individual syndromes and that the similarities between them outweigh the differences. Similarities are apparent in case definition, reported symptoms, and in non-symptom association such as patients' sex, outlook, and response to treatment. We conclude that the existing definitions of these syndromes in terms of specific symptoms is of limited value; instead we believe a dimensional classification is likely to be more productive.

Integrity signals

Registry

Crossref · 10.1016/s0140-6736(98)08320-2

Cites

154 of 154 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wessely, S., Nimnuan, C., & Sharpe, M.
Affiliations
Royal Edinburgh Hospital (GB)
Venue
The Lancet
Publisher
Elsevier BV
Published
1999-09
Volume
354
Issue
9182
Pages
936-939
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2137698397
Cited by
1,211
References
153
Citations by year
2026: 20 · 2025: 29 · 2024: 36 · 2023: 26 · 2022: 24 · 2021: 36 · 2020: 37 · 2019: 36 · 2018: 36 · 2017: 53 · 2016: 38 · 2015: 53 · 2014: 36 · 2013: 38 · 2012: 49
FWCI
5.33
Type
journal article
Language
en
Open access
closed
Locations
  • The Lancet (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Fibromyalgia and Chronic Fatigue Syndrome Research
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
functional somatic syndromes, irritable bowel syndrome, chronic fatigue syndrome, dimensional classification, case definition, symptom overlap, sex differences, treatment response
MeSH terms
Colonic Diseases, Functional, Combined Modality Therapy, Humans, Patient Care Team, Prognosis, Sick Role, Somatoform Disorders, Fatigue Syndrome, Chronic

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review