title: Post-combat syndromes from the Boer war to the Gulf war: a cluster analysis of their nature and attribution.
abstract: OBJECTIVE
  To discover whether post-combat syndromes have existed after modern wars and what relation they bear to each other.
  
  
  METHODS
  Review of medical and military records of servicemen and cluster analysis of symptoms.
  
  
  METHODS
  Records for 1856 veterans randomly selected from war pension files awarded from 1872 and from the Medical Assessment Programme for Gulf war veterans.
  
  
  METHODS
  Characteristic patterns of symptom clusters and their relation to dependent variables including war, diagnosis, predisposing physical illness, and exposure to combat; and servicemen's changing attributions for post-combat disorders.
  
  
  RESULTS
  Three varieties of post-combat disorder were identified-a debility syndrome (associated with the 19th and early 20th centuries), somatic syndrome (related primarily to the first world war), and a neuropsychiatric syndrome (associated with the second world war and the Gulf conflict). The era in which the war occurred was overwhelmingly the best predictor of cluster membership.
  
  
  CONCLUSIONS
  All modern wars have been associated with a syndrome characterised by unexplained medical symptoms. The form that these assume, the terms used to describe them, and the explanations offered by servicemen and doctors seem to be influenced by advances in medical science, changes in the nature of warfare, and underlying cultural forces.
authors.affiliation: Department of Psychological Medicine, Guy's, King's, and St Thomas's School of Medicine, London SE5 8AZ. E.Jones@hogarth7.demon.co.uk
authors.forename: Edgar
authors.initials: E
authors.lastname: Jones
authors.forename: Robert
authors.initials: R
authors.lastname: Hodgins-Vermaas
authors.forename: Helen
authors.initials: H
authors.lastname: McCartney
authors.forename: Brian
authors.initials: B
authors.lastname: Everitt
authors.forename: Charlotte
authors.initials: C
authors.lastname: Beech
authors.forename: Denise
authors.initials: D
authors.lastname: Poynter
authors.forename: Ian
authors.initials: I
authors.lastname: Palmer
authors.forename: Kenneth
authors.initials: K
authors.lastname: Hyams
authors.forename: Simon
authors.initials: S
authors.lastname: Wessely
mesh_terms: D016000:Cluster Analysis; D049672:History, 19th Century; D006801:Humans; D008297:Male; D008889:Military Personnel; D018923:Persian Gulf Syndrome / Q000453:epidemiology; D013313:Stress Disorders, Post-Traumatic / Q000145:classification / Q000453:epidemiology; D006113:United Kingdom; D014857:Warfare