title: Mortality and self-rated health in Canada.
abstract: BACKGROUND
  This study investigates the degree to which the relationship between self-rated health and mortality is consistent across income groups in Canada and whether it can be explained by differentials in physical activity.
  
  
  METHODS
  A sample of 17,852 adults in the 1981 Canada Fitness Survey was followed for 13 years for mortality.
  
  
  RESULTS
  After adjusting for several confounders, there was a dose-response relationship between self-rated health and all-cause, CVD, and cancer mortality. This relationship persisted across levels of income. Physical activity was inversely related to mortality; however, the risk of mortality associated with low self-rated health did not differ significantly between activity groups.
  
  
  CONCLUSIONS
  Physical activity does not appear to be a significant mediating or moderating factor in the relationship between self-rated health and mortality.
authors.affiliation: School of Physical and Health Education, Queen's University, Kingston, ON.
authors.forename: Caitlin
authors.initials: C
authors.lastname: Mason
authors.forename: Peter T
authors.initials: PT
authors.lastname: Katzmarzyk
authors.forename: Cora L
authors.initials: CL
authors.lastname: Craig
authors.forename: Lise
authors.initials: L
authors.lastname: Gauvin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002170:Canada; D002648:Child; D019992:Databases as Topic; D005260:Female; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009026:Mortality / Q000639:trends*; D010465:Perception; D010809:Physical Fitness; D012306:Risk; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires