Income-related Inequality and Decomposition of Edentulism Among Aged People in China

Overview

Journal BMC Oral Health

Publisher Biomed Central

Specialty Dentistry

Date 2022 Jun 1

PMID 35641983

Authors

Shuo Du

Menglin Cheng

Chunzi Zhang

Mengru Xu

Sisi Wang

Wenhui Wang

Xing Wang

Xiping Feng

Baojun Tai

Deyu Hu

Huancai Lin

Bo Wang

Chunxiao Wang

Shuguo Zheng

Xuenan Liu

Wensheng Rong

Weijian Wang

Tao Xu

Yan Si

Affiliations

Soon will be listed here.

Abstract

Background: The aim of this study was to assess the income-related inequality of edentulism among the aged in China and identify the contributing factors.

Methods: A secondary analysis of data from the 4th National Oral Health Epidemiology Survey in China was conducted, and 65-74 years old were selected for the analysis of income-related inequality of edentulism. The concentration curve, Concentration index (CI) and Erreygers-corrected concentration index (EI) were used to represent inequality and its degree qualitatively and quantitatively, respectively. A decomposition method based on probit model was employed to determine the contributors of inequality, including demographic factors, income status, oral health-related knowledge, attitude and practices and self-perceived general health status.

Results: In China, aged people with edentulism were concentrated in the poor. The CI was - 0.2337 (95% CIs: - 0.3503, - 0.1170). The EI was - 0.0413 (95% CIs: - 0.0619, - 0.0207). The decomposition results showed that income (75.02%) and oral health-related knowledge, attitude and practices (15.52%) were the main contributors to the inequality.

Conclusion: This study showed that pro-poor inequality among the elderly with edentulism existed in China. Corresponding policies against the contributors could be considered to promote the health equality of the elders.

Citing Articles

Perceptions and experience of rural older people in oral health management in China: a qualitative study.

An R, Jiang G, Wu Z, Liu M, Sohaib M, Chen W BMC Oral Health. 2024; 24(1):644.

PMID: 38822319 PMC: 11143558. DOI: 10.1186/s12903-024-04401-8.

Longitudinal association of edentulism with cognitive impairment, sarcopenia and all-cause mortality among older Chinese adults.

Li Y, Huang C, Lu X, Tang Z, Wang Y, Sun Y BMC Oral Health. 2023; 23(1):333.

PMID: 37244990 PMC: 10225090. DOI: 10.1186/s12903-023-03015-w.

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