ArticleBMJ open2019
A publicly well-accepted measure versus an academically desirable measure of health inequality: cross-sectional comparison of the difference between income quintiles with the slope index of inequality.
Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed.
- Global Burden of Pulmonary Arterial Hypertension in Older Adults and Its Causal Association With Body Mass Index.Pulmonary circulation · 2026Article
- Decomposition of cross-country socioeconomic inequality in mortality by 288 causes of death and 84 risk factors from 1990 to 2021.Nature communications · 2026Article
- Impact of temperature variations on burden of lower respiratory infections under climate change (1990-2021).BMC public health · 2025Article
- Global Trends and Inequalities of Liver Complications Related to Metabolic Dysfunction-Associated Steatotic Liver Disease: An Analysis From 1990 to 2021.Liver international : official journal of the International Association for the Study of the Liver · 2025Article
- Global, regional, and national burden of sudden infant death syndrome and the impact of COVID-19: a trend and health inequality analysis based on the global burden of disease study 2021.Frontiers in pediatrics · 2025Article
- Ethnic inequalities in coverage and use of women's cancer screening in Peru.BMC women's health · 2024Article
- Progress towards health equity in Vietnam: evidence from nationwide official health statistics, 2010-2020.BMJ global health · 2024Article
- Article
- Contrasting income-based inequalities in incidence and mortality of breast cancer in Korea, 2006-2015.Epidemiology and health · 2024Article
- Changes in Online Food Access During the COVID-19 Pandemic and Associations With Deprivation: Longitudinal Analysis.JMIR public health and surveillance · 2023Article
- Spatio-temporal Analysis of District-level Life Expectancy from 2004 to 2017 in Korea.Journal of Korean medical science · 2021Article
- Effect of financial stress on self-rereported health and quality of life among older adults in five developing countries: a cross sectional analysis of WHO-SAGE survey.BMC geriatrics · 2020Article
- Inequality in Life Expectancy in Korea according to Various Categorizations of the National Health Insurance Premiums as a Marker of Income.Yonsei medical journal · 2020Article
- Life expectancy and inequalities therein by income from 2016 to 2018 across the 253 electoral constituencies of the National Assembly of the Republic of Korea.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2020Article
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectivesThe difference between income quintiles in health is relatively well accepted by the general public as a measure of health inequality. However, the slope index of inequality (SII) in health reflects the patterns of all social groups, including the middle 60%, and it could therefore be considered more academically desirable. If these two measures are closely correlated, the widespread use of the difference between income quintiles in health would be better supported. This study was conducted to compare differences between income quintiles in life expectancy (LE) and healthy life expectancy (HLE) with the SII.
designCross-sectional comparison using correlational analysis of district level income differences in LE and HLE with associated SII.
settingAll 252 subnational districts of Korea.
participantsA total of 342 439 895 subjects (171 287 729 men, 171 152 166 women) and 1 753 476 deaths (970 928 men, 782 548 women) between 2008 and 2014 were analysed. PRIMARY AND SECONDARY OUTCOME MEASURES: Difference in LE and HLE by income quintile and associated SII.
resultsThe Pearson correlation coefficients between differences between income quintiles and the SII were generally high: 0.97 (95% CI 0.96 to 0.98) for LE in men and women combined and 0.96 (95% CI 0.94 to 0.97) for HLE in men and women combined. In most districts, the SII was greater than the difference between income quintiles.
conclusionDifferences between income quintiles were closely correlated with the SII. The widespread use of differences between income quintiles in health as a measure of health inequality may be preferable for communicating results of health inequality measurements to the public.
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