title: Cancer survival in New South Wales, Australia: socioeconomic disparities remain despite overall improvements.
abstract: BACKGROUND
  Disparities in cancer survival by socioeconomic status have been reported previously in Australia. We investigated whether those disparities have changed over time.
  
  
  METHODS
  We used population-based cancer registry data for 377,493 patients diagnosed with one of 10 major cancers in New South Wales (NSW), Australia. Patients were assigned to an area-based measure of socioeconomic status. Five-year relative survival was estimated for each socioeconomic quintile in each 'at risk' period (1996-2000 and 2004-2008) for the 10 individual cancers. Poisson-regression modelling was used to adjust for several prognostic factors. The relative excess risk of death by socioeconomic quintile derived from this modelling was compared over time.
  
  
  RESULTS
  Although survival increased over time for most individual cancers, Poisson-regression models indicated that socioeconomic disparities continued to exist in the recent period. Significant socioeconomic disparities were observed for stomach, colorectal, liver, lung, breast and prostate cancer in 1996-2000 and remained so for 2004-2008, while significant disparities emerged for cervical and uterus cancer in 2004-2008 (although the interaction between period and socioeconomic status was not significant). About 13.4% of deaths attributable to a diagnosis of cancer could have been postponed if this socioeconomic disparity was eliminated.
  
  
  CONCLUSIONS
  While recent health and social policies in NSW have accompanied an increase in cancer survival overall, they have not been associated with a reduction in socioeconomic inequalities.
authors.affiliation: Sydney School of Public Health, The University of Sydney, Sydney, Australia.|Cancer Research Division, Cancer Council New South Wales, P.O. Box 572, Kings Cross, NSW, 1340, Australia.
authors.forename: Julia F
authors.initials: JF
authors.lastname: Stanbury
authors.affiliation: Cancer Research Centre, Cancer Council Queensland, Brisbane, Australia.|School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia.
authors.forename: Peter D
authors.initials: PD
authors.lastname: Baade
authors.affiliation: Cancer Research Division, Cancer Council New South Wales, P.O. Box 572, Kings Cross, NSW, 1340, Australia.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Sydney School of Public Health, The University of Sydney, Sydney, Australia. xueqiny@nswcc.org.au.|Cancer Research Division, Cancer Council New South Wales, P.O. Box 572, Kings Cross, NSW, 1340, Australia. xueqiny@nswcc.org.au.
authors.forename: Xue Qin
authors.initials: XQ
authors.lastname: Yu
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology* / Q000473:pathology; D009517:New South Wales / Q000453:epidemiology; D012307:Risk Factors; D012959:Socioeconomic Factors
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