Decomposing socioeconomic inequality in dental caries in Iran: Cross-sectional results from the PERSIAN cohort study

Najafi, F. and Rezaei, S. and Hajizadeh, M. and Soofi, M. and Salimi, Y. and Kazemi Karyani, A. and Soltani, S. and Ahmadi, S. and Homaie Rad, E. and Karami Matin, B. and Pasdar, Y. and Hamzeh, B. and Nazar, M.M. and Mohammadi, A. and Poustchi, H. and Motamed-Gorji, N. and Moslem, A. and Khaleghi, A.A. and Fatthi, M.R. and Aghazadeh-Attari, J. and Ahmadi, A. and Pourfarzi, F. and Somi, M.H. and Sohrab, M. and Ansari-Moghadam, A. and Edjtehadi, F. and Esmaeili, A. and Joukar, F. and Lotfi, M.H. and Aghamolaei, T. and Eslami, S. and Tabatabaee, S.H.R. and Saki, N. and Haghdost, A.A. (2020) Decomposing socioeconomic inequality in dental caries in Iran: Cross-sectional results from the PERSIAN cohort study. Archives of Public Health.

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Abstract

Background: The current study aimed to measure and decompose socioeconomic-related inequalities in DMFT (decayed, missing, and filled teeth) index among adults in Iran. Methods: The study data were extracted from the adult component of Prospective Epidemiological Research Studies in IrAN (PERSIAN) from 17 centers in 14 different provinces of Iran. DMFT score was used as a measure of dental caries among adults in Iran. The concentration curve and relative concentration index (RC) was used to quantify and decompose socioeconomic-related inequalities in DMFT. Results: A total of 128,813 adults aged 35 and older were included in the study. The mean (Standard Deviation SD) score of D, M, F and DMFT of the adults was 3.3 (4.6), 12.6 (10.5), 2.1 (3.4) and 18.0 (9.5), respectively. The findings suggested that DMFT was mainly concentrated among the socioeconomically disadvantaged adults (RC = - 0.064; 95% confidence interval CI), - 0.066 to - 0.063). Socioeconomic status, being male, older age and being a widow or divorced were identified as the main factors contributing to the concentration of DMFT among the worse-off adults. Conclusions: It is recommended to focus on the dental caries status of socioeconomically disadvantaged groups in order to reduce socioeconomic-related inequality in oral health among Iranian adults. Reducing socioeconomic-related inequalities in dental caries should be accompanied by appropriate health promotion policies that focus actions on the fundamental socioeconomic causes of dental disease. © 2020 The Author(s).

Item Type: Article
Depositing User: Unnamed user with email eprints@fums.ac.ir
Date Deposited: 07 Nov 2020 07:29
Last Modified: 07 Nov 2020 07:29
URI: http://eprints.fums.ac.ir/id/eprint/2769

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