title: The burden of multiple sclerosis: a community health survey.
abstract: BACKGROUND
  Health-related quality of life (HRQL) in persons with multiple sclerosis (MS) who reside within the community relative to the general population is largely unknown. Data from the Canadian Community Health Survey Cycle 1.1 (CCHS 1.1) were used to compare HRQL of persons with MS and the general population.
  
  
  METHODS
  A representative sample of adults (18 years or older) from the cross sectional population health survey, CCHS 1.1, was examined to compare scores on the Health Utilities Index Mark 3 (HUI3), a generic preference-based HRQL measure, of respondents with (n = 302) and without (n = 109,741) MS. Selected sociodemographic covariates were adjusted for in ANCOVA models. Normalized sampling weights and bootstrap variance estimates were used in the analysis.
  
  
  RESULTS
  The mean difference in overall HUI3 scores between respondents with and without MS was 0.25 (95% CI: 0.20, 0.31); eight times greater than the clinically important difference. The largest differences in scores were seen with the ambulation (0.26; 95% CI: 0.20, 0.32) and pain attributes (0.14; 95% CI: 0.09, 0.19). Clinically important differences with dexterity and cognition were also observed.
  
  
  CONCLUSIONS
  While the proportion of the Canadian population with MS is relatively small in comparison to other diseases, the magnitude of the burden is severe relative to the general population.
authors.affiliation: Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, T6G 2G4, Canada. cajones@ualberta.ca
authors.forename: C Allyson
authors.initials: CA
authors.lastname: Jones
authors.forename: Sheri L
authors.initials: SL
authors.lastname: Pohar
authors.forename: Sharon
authors.initials: S
authors.lastname: Warren
authors.forename: Karen V L
authors.initials: KV
authors.lastname: Turpin
authors.forename: Kenneth G
authors.initials: KG
authors.lastname: Warren
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002170:Canada; D002908:Chronic Disease / Q000191:economics; D017281:Cost of Illness; D003430:Cross-Sectional Studies; D005260:Female; D006305:Health Status Indicators; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000523:psychology; D011788:Quality of Life; D012737:Sex Factors; D012959:Socioeconomic Factors