Najafi Farid, Rezaei Satar, Hajizadeh Mohammad, Soofi Moslem, Salimi Yahya, Kazemi Karyani Ali, Soltani Shahin, Ahmadi Sina, Homaie Rad Enayatollah, Karami Matin Behzad, Pasdar Yahya, Hamzeh Behrooz, Nazar Mehdi Moradi, Mohammadi Ali, Poustchi Hossein, Motamed-Gorji Nazgol, Moslem Alireza, Khaleghi Ali Asghar, Fatthi Mohammad Reza, Aghazadeh-Attari Javad, Ahmadi Ali, Pourfarzi Farhad, Somi Mohammad Hossein, Sohrab Mehrnoush, Ansari-Moghadam Alireza, Edjtehadi Farhad, Esmaeili Ali, Joukar Farahnaz, Lotfi Mohammad Hasan, Aghamolaei Teamur, Eslami Saied, Tabatabaee Seyed Hamid Reza, Saki Nader, Haghdost Ali Akbar
Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
School of Health Administration, Faculty of Health, Dalhousie University, Halifax, Canada.
Arch Public Health. 2020 Aug 18;78:75. doi: 10.1186/s13690-020-00457-4. eCollection 2020.
The current study aimed to measure and decompose socioeconomic-related inequalities in DMFT (decayed, missing, and filled teeth) index among adults in Iran.
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.
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.
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.
本研究旨在测量和分解伊朗成年人中DMFT（龋失补牙指数）与社会经济相关的不平等情况。
研究数据取自伊朗前瞻性流行病学研究（PERSIAN）成人部分，该研究来自伊朗14个不同省份的17个中心。DMFT得分被用作衡量伊朗成年人龋齿情况的指标。采用集中曲线和相对集中指数（RC）来量化和分解DMFT与社会经济相关的不平等情况。
本研究共纳入128,813名35岁及以上成年人。成年人的D、M、F和DMFT得分的平均值（标准差[SD]）分别为3.3（4.6）、12.6（10.5）、2.1（3.4）和18.0（9.5）。研究结果表明，DMFT主要集中在社会经济地位不利的成年人中（RC = -0.064；95%置信区间[CI]，-0.066至-0.063）。社会经济地位、男性、年龄较大以及丧偶或离异被确定为导致DMFT在较贫困成年人中集中的主要因素。
建议关注社会经济地位不利群体的龋齿状况，以减少伊朗成年人在口腔健康方面与社会经济相关的不平等。减少龋齿方面与社会经济相关的不平等应伴随适当的健康促进政策，这些政策应将行动重点放在导致牙齿疾病的基本社会经济原因上。
