title: Prevalence of and risk factors for chronic bronchitis in a Canadian population: the Canadian Community Health Survey, 2007 to 2008.
abstract: BACKGROUND
  Chronic bronchitis (CB) represents one of the respiratory disease phenotypes that affect the Canadian health care system significantly. Presently, almost 6.5% of total health care costs are related to respiratory diseases.
  
  
  OBJECTIVE
  To determine the prevalence of self-reported CB and associated risk factors in the Canadian general population.
  
  
  METHODS
  Data regarding individuals ≥12 years of age from the Canadian Community Health Survey, 2007 to 2008, were analyzed. CB was determined through self-reported health professional diagnosis. Information regarding covariates of importance, such as demographics, lifestyle variables and socioeconomic status, was obtained. A weighted logistic regression analysis was performed with appropriate technique for clustering effects.
  
  
  RESULTS
  The prevalence of self-reported CB was 2.5%. A greater prevalence of self-reported CB associated with older age, female sex and white ethnic group was found. There were differences in the prevalence of self-reported CB among regions of Canada for household income, educational attainment and smoking status.
  
  
  CONCLUSIONS
  The results suggest an association between ethnicity and the prevalence of CB. The associations between self-reported CB prevalence and household income, educational attainment and smoking status varied according to region of Canada.
authors.affiliation: Canadian Centre for Health and Safety in Agriculture, University of Saskatcheswan, Royal University Hospital, Saskatoon. cpk646@mail.usask.ca
authors.forename: Chandima P
authors.initials: CP
authors.lastname: Karunanayake
authors.forename: Briana
authors.initials: B
authors.lastname: Hagen
authors.forename: James A
authors.initials: JA
authors.lastname: Dosman
authors.forename: Punam
authors.initials: P
authors.lastname: Pahwa
mesh_terms: D000328:Adult; D000368:Aged; D029481:Bronchitis, Chronic / Q000453:epidemiology* / Q000208:ethnology*; D002170:Canada / Q000453:epidemiology; D003153:Community Health Services / Q000706:statistics & numerical data*; D005260:Female; D006306:Health Surveys; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D057566:Self Report