Income-related inequality and decomposition of edentulism among aged people in China

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 we...

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Main 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
Format: Article
Language:English
Published: BMC 2022-05-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-022-02246-7
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author 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
author_facet 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
author_sort Shuo Du
collection DOAJ
description 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.
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spelling doaj.art-59fab56c91d8407383501baca4c46f642022-12-22T03:22:26ZengBMCBMC Oral Health1472-68312022-05-012211910.1186/s12903-022-02246-7Income-related inequality and decomposition of edentulism among aged people in ChinaShuo Du0Menglin Cheng1Chunzi Zhang2Mengru Xu3Sisi Wang4Wenhui Wang5Xing Wang6Xiping Feng7Baojun Tai8Deyu Hu9Huancai Lin10Bo Wang11Chunxiao Wang12Shuguo Zheng13Xuenan Liu14Wensheng Rong15Weijian Wang16Tao Xu17Yan Si18Department of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Stomatology, Beijing Friendship Hospital, Capital Medical UniversityDistinct Health CareDepartment of Stomatology, Beijing Chao-Yang Hospital, Capital Medical UniversityDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyChinese Stomatological AssociationShanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineSchool and Hospital of Stomatology, Wuhan UniversityWest China School of Stomatology, Sichuan UniversityGuanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen UniversityChinese Stomatological AssociationChinese Center for Disease Control and PreventionDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyDepartment of Preventive Dentistry, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, National Clinical Research Center for Oral Diseases, Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health, Peking University School and Hospital of StomatologyAbstract 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.https://doi.org/10.1186/s12903-022-02246-7EdentulismThe elderlyInequalityChina
spellingShingle 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
Income-related inequality and decomposition of edentulism among aged people in China
BMC Oral Health
Edentulism
The elderly
Inequality
China
title Income-related inequality and decomposition of edentulism among aged people in China
title_full Income-related inequality and decomposition of edentulism among aged people in China
title_fullStr Income-related inequality and decomposition of edentulism among aged people in China
title_full_unstemmed Income-related inequality and decomposition of edentulism among aged people in China
title_short Income-related inequality and decomposition of edentulism among aged people in China
title_sort income related inequality and decomposition of edentulism among aged people in china
topic Edentulism
The elderly
Inequality
China
url https://doi.org/10.1186/s12903-022-02246-7
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