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- Title
Global socioeconomic inequality in burden of five common cancers in 2019: concentration index and decomposition analysis.
- Authors
Ayubi, Erfan; Khazaei, Salman
- Abstract
Aim: Concentration index (CI) and decomposition analysis are health equity methods that are frequently applied to investigate socioeconomic status (SES) inequality in health outcomes. Results of the Global Burden of Disease Study (GBD) 2019 show that the gradient of cancers fluctuates across countries. This study aimed to quantify the role of the Human Development Index (HDI) as a marker for SES in the inequality of five common cancers—breast, colorectal, lung, prostate, and stomach—and decomposed the inequality to HDI components using GBD 2019 data. Subject and methods: For each country, data on incidence, mortality, prevalence rates, and disability-adjusted life years (DALY) as well as HDI and its components were extracted from available public-use databases. Next, mortality and incidence ratios (MIRs) were calculated. CI was used to measure inequality in the aforementioned indicators across the HDI distribution. Then the CIs were decomposed and the contribution of each HDI component to the inequality was estimated. Results: Incidence, mortality, prevalence rates, and DALY show higher values among countries with higher levels of HDI (CI > 0, P < 0.001), and the contribution of education for breast, colorectal, lung, and prostate cancer and life expectancy for stomach cancer were highest. On the other hand, the MIRs were more concentrated among countries with lower levels of HDI (CI < 0, P < 0.001), and the contribution of life expectancy for breast, colorectal, and prostate cancer and income for lung and stomach cancer were highest. Conclusion: Our results provide pro-rich and pro-poor inequality in cancer burden indicators across countries. HDI and its components are responsible for some parts of these inequalities.
- Subjects
MORTALITY; STOMACH tumors; RESEARCH funding; SOCIOECONOMIC factors; BREAST tumors; LIFE expectancy; GLOBAL burden of disease; COLORECTAL cancer; PROSTATE tumors; DESCRIPTIVE statistics; DEVELOPMENTAL psychobiology; LUNG tumors; HEALTH equity; CONFIDENCE intervals; DATA analysis software; SOCIAL classes; DISEASE incidence; PEOPLE with disabilities; REGRESSION analysis
- Publication
Journal of Public Health (09431853), 2024, Vol 32, Issue 6, p1049
- ISSN
0943-1853
- Publication type
Article
- DOI
10.1007/s10389-023-01889-2