title: Comorbidities, medications and depressive symptoms in patients with restless legs syndrome and migraine.
abstract: OBJECTIVE
  The pathophysiology of migraine and restless legs syndrome (RLS) seems to involve inherited mechanism and dysfunction of the dopaminergic system. Previous articles have shown that the frequency of RLS is higher in migraine patients than in controls. We conducted a study to evaluate comorbidities, medication used and depressive symptoms that can explain the relation between migraine and RLS.
  
  
  METHODS
  A case-control study was performed in which patients with migraine (n=72) and a control group without migraine (n=72) were interviewed. Data including RLS diagnosis, depressive symptoms, comorbidities and drugs used were evaluated.
  
  
  RESULTS
  There was a significant association between migraine and RLS (p=0.01), but comorbidities such as diabetes, hypertension, anemia and drugs used did not explain this association. Depression scores, as measured by the Beck Depression Inventory, were higher in migraine patients with RLS (p =0.04).
  
  
  CONCLUSIONS
  No specific factors explaining the association between migraine and RLS were found. Symptoms of depression were more frequent in patients with migraine and RLS.
authors.affiliation: Department of Neuroscience, Medical School at Ribeirão Preto, University of São Paulo, São Paulo, SP, Brazil. karenferreira@usp.br
authors.forename: Karen S
authors.initials: KS
authors.lastname: Ferreira
authors.forename: Alan
authors.initials: A
authors.lastname: Eckeli
authors.forename: Fabíola
authors.initials: F
authors.lastname: Dach
authors.forename: José G
authors.initials: JG
authors.lastname: Speciali
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D015897:Comorbidity; D003863:Depression / Q000453:epidemiology / Q000523:psychology; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000188:drug therapy / Q000453:epidemiology* / Q000523:psychology; D010555:Personality Inventory; D012148:Restless Legs Syndrome / Q000188:drug therapy / Q000453:epidemiology* / Q000523:psychology; D017678:Sex Distribution; D055815:Young Adult