Disparities in cancer stage at diagnosis and survival of Aboriginal and non-Aboriginal South Australians

Cancer Epidemiology
David BanhamCanDAD Aboriginal Community Reference Group and other CanDAD investigators

Abstract

This study tested the utility of retrospectively staging cancer registry data for comparing stage and stage-specific survivals of Aboriginal and non-Aboriginal people. Differences by area level factors were also explored. This test dataset comprised 950 Aboriginal cases and all other cases recorded on the South Australian cancer registry with a 1977-2010 diagnosis. A sub-set of 777 Aboriginal cases diagnosed in 1990-2010 were matched with randomly selected non-Aboriginal cases by year of birth, diagnostic year, sex, and primary site of cancer. Competing risk regression summarised associations of Aboriginal status, stage, and geographic attributes with risk of cancer death. Aboriginal cases were 10 years younger at diagnosis, more likely to present in recent diagnostic years, to be resident of remote areas, and have primary cancer sites of head & neck, lung, liver and cervix. Risk of cancer death was associated in the matched analysis with more advanced stage at diagnosis. More Aboriginal than non-Aboriginal cases had distant metastases at diagnosis (31.3% vs 22.0, p<0.001). After adjusting for stage, remote-living Aboriginal residents had higher risks of cancer death than Aboriginal residents of metropolitan areas. Non-Aborigin...Continue Reading

Citations

Oct 31, 2019·BMC Health Services Research·David BanhamUNKNOWN CanDAD Aboriginal Community Reference Group and other CanDAD Investigators
Jun 9, 2020·JAMA Network Open·Lisa M JamiesonKaren Canfell
Apr 25, 2018·Health Expectations : an International Journal of Public Participation in Health Care and Health Policy·Rachel ReillyUNKNOWN other CanDAD Investigators and the CanDAD Aboriginal Community Reference Group
Jun 16, 2019·BMC Health Services Research·David BanhamUNKNOWN CanDAD Aboriginal Community Reference Group and other CanDAD investigators
Feb 21, 2021·The Medical Journal of Australia·Jessica HowellJoshua S Davis
Feb 26, 2021·Internal Medicine Journal·John S LubelNichols A Shackel

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Cancer Disparities

Cancer disparities refers to differences in cancer outcomes (e.g., number of cancer cases, related health complications) across population groups.