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Differences in cancer incidence by age at diagnosis between Aboriginal and non-Aboriginal people for cancer types included in Australian national screening programs

Journal Article


Abstract


  • Background: This study examined age distributions and age-specific incidence of screened cancers by Aboriginal status in New South Wales (NSW) to consider the appropriateness of screening target age ranges. Methods: The NSW Cancer Registry identified invasive (female) breast, cervical and bowel cancers in people diagnosed in 2001���2014. Results: Aboriginal people were younger at diagnosis with higher proportions of breast and bowel cancers diagnosed before the screening target age range (<50 years) compared with non-Aboriginal people (30.6% vs. 22.8%, and 17.3% vs. 7.3%, respectively). Age-specific incidence rate ratios (IRRs) were lower/similar for breast and bowel cancers in younger and higher in older Aboriginal than non-Aboriginal people. All age-specific cervical cancer IRRs were higher for Aboriginal compared with non-Aboriginal people. Conclusion: Although higher proportions of breast and colorectal cancers were diagnosed before screening commencement age in Aboriginal people, this does not necessarily indicate a need for earlier screening commencement. Other aspects needing consideration include benefits, harms and cost-effectiveness.

Publication Date


  • 2019

Citation


  • Tervonen, H. E., Morrell, S., Roder, D., You, H., & Currow, D. C. (2019). Differences in cancer incidence by age at diagnosis between Aboriginal and non-Aboriginal people for cancer types included in Australian national screening programs. Cancer Epidemiology, 60, 102-105. doi:10.1016/j.canep.2019.03.012

Scopus Eid


  • 2-s2.0-85063436801

Start Page


  • 102

End Page


  • 105

Volume


  • 60

Issue


Place Of Publication


Abstract


  • Background: This study examined age distributions and age-specific incidence of screened cancers by Aboriginal status in New South Wales (NSW) to consider the appropriateness of screening target age ranges. Methods: The NSW Cancer Registry identified invasive (female) breast, cervical and bowel cancers in people diagnosed in 2001���2014. Results: Aboriginal people were younger at diagnosis with higher proportions of breast and bowel cancers diagnosed before the screening target age range (<50 years) compared with non-Aboriginal people (30.6% vs. 22.8%, and 17.3% vs. 7.3%, respectively). Age-specific incidence rate ratios (IRRs) were lower/similar for breast and bowel cancers in younger and higher in older Aboriginal than non-Aboriginal people. All age-specific cervical cancer IRRs were higher for Aboriginal compared with non-Aboriginal people. Conclusion: Although higher proportions of breast and colorectal cancers were diagnosed before screening commencement age in Aboriginal people, this does not necessarily indicate a need for earlier screening commencement. Other aspects needing consideration include benefits, harms and cost-effectiveness.

Publication Date


  • 2019

Citation


  • Tervonen, H. E., Morrell, S., Roder, D., You, H., & Currow, D. C. (2019). Differences in cancer incidence by age at diagnosis between Aboriginal and non-Aboriginal people for cancer types included in Australian national screening programs. Cancer Epidemiology, 60, 102-105. doi:10.1016/j.canep.2019.03.012

Scopus Eid


  • 2-s2.0-85063436801

Start Page


  • 102

End Page


  • 105

Volume


  • 60

Issue


Place Of Publication