title: Discriminant analysis of the cognitive performance profile of MS patients differentiates their clinical course.
abstract: OBJECTIVE
  To compare the neuropsychological deficits of primary progressive multiple sclerosis with those of relapsing-remitting and secondary progressive multiple sclerosis.
  
  
  METHODS
  Sixty-five patients with different clinical courses of MS were neuropsychologically tested for language, attention, memory and executive functions. Discriminant analysis was used to predict the type of clinical course either by clinical variables (age, EDSS and duration of illness) or neuropsychological test results.
  
  
  RESULTS
  For single neuropsychological tests, group differences were rare between the progressive courses and the relapsing-remitting course of MS or absent between the progressive courses of MS. However, discriminant analysis correctly identified 87.7 percent of the patients' courses in general, and about 90 percent of the patients with chronic progressive MS.
  
  
  CONCLUSIONS
  Using discriminant analysis, this study found neuropsychological impairment characteristic for relapsing remitting, secondary progressive and primary progressive patients.
authors.affiliation: Klinikum Bremen Ost, Dept. of Neurology, Züricher Str. 40, 28325 Bremen, Germany.
authors.forename: Jürgen A
authors.initials: JA
authors.lastname: Kraus
authors.forename: Cathleen
authors.initials: C
authors.lastname: Schütze
authors.forename: Barbara
authors.initials: B
authors.lastname: Brokate
authors.forename: Beate
authors.initials: B
authors.lastname: Kröger
authors.forename: Günther
authors.initials: G
authors.lastname: Schwendemann
authors.forename: Helmut
authors.initials: H
authors.lastname: Hildebrandt
mesh_terms: D000328:Adult; D001288:Attention / Q000502:physiology; D003072:Cognition Disorders / Q000503:physiopathology*; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008568:Memory / Q000502:physiology; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000145:classification / Q000503:physiopathology*; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D011237:Predictive Value of Tests; D011340:Problem Solving / Q000502:physiology