title: Food insecurity and migraine in Canada.
abstract: OBJECTIVE
  The aim of this study was to examine the prevalence of household food insecurity in individuals reporting migraine within a large population-based sample of Canadians.
  
  
  METHODS
  The Canadian Community Health Survey (CCHS) uses a stratified cluster sample design to obtain information on Canadians ≥12 years of age. Data on household food insecurity were assessed for individuals who reported having migraine or not, providing a current point prevalence. This was assessed for stability in two CCHS datasets from four and eight years earlier. Factors associated with food insecurity among those reporting migraine were examined and a logistic regression model of food insecurity was developed. We also examined whether food insecurity was associated with other reported chronic health conditions.
  
  
  RESULTS
  Of 48,645 eligible survey respondents, 4614 reported having migraine (weighted point prevalence 10.2%). Food insecurity was reported by 14.8% who reported migraine compared with 6.8% of those not reporting migraine, giving an odds ratio of 2.4 (95% confidence interval 2.0-2.8%). This risk estimate was stable over the previous eight years. The higher risk for food insecurity was not unique to migraine and was seen with some, but not all, chronic health conditions reported in the CCHS.
  
  
  CONCLUSIONS
  Food insecurity is more frequent among individuals reporting migraine in Canada.
authors.affiliation: Division of Pediatric Neurology, Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada jdooley@dal.ca.
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Dooley
authors.affiliation: Division of Pediatric Neurology, Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: Kevin E
authors.initials: KE
authors.lastname: Gordon
authors.affiliation: Department of Obstetrics and Gynecology, Dalhousie University, Halifax, Nova Scotia, Canada Perinatal Epidemiology Research Unit, Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada.
authors.forename: Stefan
authors.initials: S
authors.lastname: Kuhle
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002170:Canada / Q000453:epidemiology; D002648:Child; D005260:Female; D005523:Food Supply / Q000191:economics*; D006306:Health Surveys / Q000379:methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000175:diagnosis / Q000191:economics* / Q000453:epidemiology*; D011159:Population Surveillance / Q000379:methods; D055815:Young Adult
keywords: Canada; Migraine; food insecurity; population-based survey