The fraction of life years lost after diagnosis (FLYLAD): a person-centred measure of cancer burden

Population Health Metrics

Research

Jonathan Karnon¹  David Roder²  John Lynch³  David Banham⁴  Alex Brown⁵ 

[1] College of Medicine and Public Health, Flinders University, Sturt Road, 5042, Bedford Park, SA, Australia;School of Health Sciences, Cancer Research Institute, University of South Australia, North Terrace, 5000, Adelaide, SA, Australia;School of Public Health, University of Adelaide, North Terrace, 5000, Adelaide, SA, Australia;School of Public Health, University of Adelaide, North Terrace, 5000, Adelaide, SA, Australia;Wardliparingga Aboriginal Health Research, South Australian Health and Medical Research Institute, North Terrace, 5000, Adelaide, SA, Australia;Wardliparingga Aboriginal Health Research, South Australian Health and Medical Research Institute, North Terrace, 5000, Adelaide, SA, Australia;Faculty of Health and Medical Sciences, University of Adelaide, North Terrace, 5000, Adelaide, SA, Australia;

关键词: Indigenous Australians;    Cancer;    Premature mortality;    Mortality to incidence ratio;    Disparity;    Burden of disease;   

DOI  :  10.1186/s12963-023-00314-w

 received in 2019-03-20, accepted in 2023-09-07,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundCancer control initiatives are informed by quantifying the capacity to reduce cancer burden through effective interventions. Burden measures using health administrative data are a sustainable way to support monitoring and evaluating of outcomes among patients and populations. The Fraction of Life Years Lost After Diagnosis (FLYLAD) is one such burden measure. We use data on Aboriginal and non-Aboriginal South Australians from 1990 to 2010 to show how FLYLAD quantifies disparities in cancer burden: between populations; between sub-population cohorts where stage at diagnosis is available; and when follow-up is constrained to 24-months after diagnosis.MethodFLYLADcancer is the fraction of years of life expectancy lost due to cancer (YLLcancer) to life expectancy years at risk at time of cancer diagnosis (LYAR) for each person. The Global Burden of Disease standard life table provides referent life expectancies. FLYLADcancer was estimated for the population of cancer cases diagnosed in South Australia from 1990 to 2010. Cancer stage at diagnosis was also available for cancers diagnosed in Aboriginal people and a cohort of non-Aboriginal people matched by sex, year of birth, primary cancer site and year of diagnosis.ResultsCancers diagnoses (N = 144,891) included 777 among Aboriginal people. Cancer burden described by FLYLADcancer was higher among Aboriginal than non-Aboriginal (0.55, 95% CIs 0.52–0.59 versus 0.39, 95% CIs 0.39–0.40). Diagnoses at younger ages among Aboriginal people, 7 year higher LYAR (31.0, 95% CIs 30.0–32.0 versus 24.1, 95% CIs 24.1–24.2) and higher premature cancer mortality (YLLcancer = 16.3, 95% CIs 15.1–17.5 versus YLLcancer = 8.2, 95% CIs 8.2–8.3) influenced this. Disparities in cancer burden between the matched Aboriginal and non-Aboriginal cohorts manifested 24-months after diagnosis with FLYLADcancer 0.44, 95% CIs 0.40–0.47 and 0.28, 95% CIs 0.25–0.31 respectively.ConclusionFLYLAD described disproportionately higher cancer burden among Aboriginal people in comparisons involving: all people diagnosed with cancer; the matched cohorts; and, within groups diagnosed with same staged disease. The extent of disparities were evident 24-months after diagnosis. This is evidence of Aboriginal peoples’ substantial capacity to benefit from cancer control initiatives, particularly those leading to earlier detection and treatment of cancers. FLYLAD’s use of readily available, person-level administrative records can help evaluate health care initiatives addressing this need.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

【 图 表 】

Fig. 2