ArticleFrontiers in public health2024
Exploring the association between socioeconomic inequalities in chronic respiratory disease and all-cause mortality in China: findings from the China Health and Retirement Longitudinal Study.
Article in Frontiers in public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Research on the inequality of chronic respiratory disease (CRD) is limited, and the association between CRD and all-cause mortality is not well-established. Investigating the distribution of CRD and its associated mortality risks is essential for improving CRD conditions and developing targeted intervention measures. This study aimed to explore the relationship between inequalities in CRD and all-cause mortality in China. Methods: This study utilized nationally representative baseline data from the China Health and Retirement Longitudinal Study (CHARLS, 2011-2020, wave 1-wave 5), including a total of 14,743 subjects. The concentration index was employed to measure socioeconomic-related inequality in CRD, and the concentration index decomposition method was used to describe its influencing factors. Cox proportional hazards regression model was employed to examine the association between CRD and all-cause mortality. Results: The prevalence of CRD was 11.79% (95% CI: 10.98, 12.66) in China. The concentration index for CRD was -0.050 (95% CI: -0.075, -0.026), indicating a certain degree of inequality in its prevalence. Chronic lung disease (concentration index = -0.046, 95% CI: -0.073, -0.019), asthma (concentration index = -0.102, 95% CI: -0.148, -0.056), and asthma-chronic obstructive pulmonary disease overlap syndrome (concentration index = -0.114, 95% CI: -0.173, -0.055) also exhibited a pro-poor distribution. The decomposition analysis of the concentration index for CRD revealed that age, education level, and economic status played substantial roles in contributing to the observed inequality. Additionally, Cox regression analysis showed that participants with CRD had an increased risk of all-cause mortality (HR = 1.49, 95% CI: 1.34, 1.65). Conclusion: Inequalities exists in CRDs in China, with the prevalence of these diseases primarily concentrated among economically disadvantaged groups. Additionally, CRD increases the risk of all-cause mortality. Addressing the root causes of economic inequalities and enhancing the educational attainment of individuals with low socioeconomic status can help improve the situation.
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