Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/117551
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Type: Journal article
Title: Socioeconomic status, oral health and dental disease in Australia, Canada, New Zealand and the United States
Author: Mejia, G.
Elani, H.
Harper, S.
Murray Thomson, W.
Ju, X.
Kawachi, I.
Kaufman, J.
Jamieson, L.
Citation: BMC Oral Health, 2018; 18(1):176-1-176-9
Publisher: BMC
Issue Date: 2018
ISSN: 1472-6831
1472-6831
Statement of
Responsibility: 
Gloria C. Mejia, Hawazin W. Elani, Sam Harper, W. Murray Thomson, Xiangqun Ju, Ichiro Kawachi, Jay S. Kaufman and Lisa M. Jamieson
Abstract: BACKGROUND:Socioeconomic inequalities are associated with oral health status, either subjectively (self-rated oral health) or objectively (clinically-diagnosed dental diseases). The aim of this study is to compare the magnitude of socioeconomic inequality in oral health and dental disease among adults in Australia, Canada, New Zealand and the United States (US). METHODS:Nationally-representative survey examination data were used to calculate adjusted absolute differences (AD) in prevalence of untreated decay and fair/poor self-rated oral health (SROH) in income and education. We pooled age- and gender-adjusted inequality estimates using random effects meta-analysis. RESULTS:New Zealand demonstrated the highest adjusted estimate for untreated decay; the US showed the highest adjusted prevalence of fair/poor SROH. The meta-analysis showed little heterogeneity across countries for the prevalence of decayed teeth; the pooled ADs were 19.7 (95% CI = 16.7-22.7) and 12.0 (95% CI = 8.4-15.7) between highest and lowest education and income groups, respectively. There was heterogeneity in the mean number of decayed teeth and in fair/poor SROH. New Zealand had the widest inequality in decay (education AD = 0.8; 95% CI = 0.4-1.2; income AD = 1.0; 95% CI = 0.5-1.5) and the US the widest inequality in fair/poor SROH (education AD = 40.4; 95% CI = 35.2-45.5; income AD = 20.5; 95% CI = 13.0-27.9). CONCLUSIONS:The differences in estimates, and variation in the magnitude of inequality, suggest the need for further examining socio-cultural and contextual determinants of oral health and dental disease in both the included and other countries.
Keywords: Dental caries; Oral health; Self-report; Socioeconomic factors
Rights: © The Author(s). 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
RMID: 0030101948
DOI: 10.1186/s12903-018-0630-3
Grant ID: http://purl.org/au-research/grants/nhmrc/299060
http://purl.org/au-research/grants/nhmrc/349514
http://purl.org/au-research/grants/nhmrc/349537
Appears in Collections:Dentistry publications

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