Department of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Korea.
Department of Dental Hygiene, Gumi University, Gumi, Korea.
Epidemiol Health. 2021;43:e2021020. doi: 10.4178/epih.e2021020. Epub 2021 Apr 2.
To estimate the prevalence of edentulism according to the socio-demographic variables of Korean adults between 2007 and 2018 and to analyze the trends.
This study was conducted using raw data from the Korea National Health and Nutrition Examination Survey (KNHANES) from 2007 to 2018. Edentulism was defined as the absence of upper and lower teeth or the retained root of the missing teeth. To obtain the prevalence of edentulism, complex sample frequency analysis and regression analysis were performed according to the socio-demographic variables to represent the national population. The Korean population structure in 2005 was exploited as a standard population to calculate age-standardized edentulism.
The prevalence of edentulism in 2016-2018 was 9.7% in the Korean elderly, and the change of age-standardized edentulism steadily declined over time from 2007, 12.8%. In particular, it decreased by approximately 20% in the period between 2016 and 2018 compared to that in 2007 for those in their 80s. The trend of the prevalence according to gender decreased significantly in women. According to the level of education, the greatest decrease was seen in the group with the lowest education, although the prevalence itself was higher than that seen in those who were more educated.
The prevalence of edentulism among the older Korean population has decreased over time. However, the concern is on those with lower education and men as these groups are still at higher risk for edentulism.
根据韩国成年人 2007 年至 2018 年的社会人口统计学变量，估计无牙颌的流行情况，并分析其趋势。
本研究使用了 2007 年至 2018 年韩国国民健康营养调查（KNHANES）的原始数据。无牙颌定义为上下颌无牙或缺失牙齿的残根。为了获得无牙颌的患病率，根据社会人口统计学变量进行了复杂样本频率分析和回归分析，以代表全国人口。利用 2005 年韩国人口结构作为标准人口来计算年龄标准化的无牙颌患病率。
2016-2018 年韩国老年人的无牙颌患病率为 9.7%，年龄标准化无牙颌患病率从 2007 年的 12.8%稳步下降。特别是，与 2007 年相比，80 多岁人群的患病率在 2016-2018 年间下降了约 20%。按性别划分的患病率趋势在女性中显著下降。按教育程度划分，受教育程度最低的人群下降幅度最大，尽管患病率本身高于受教育程度较高的人群。
韩国老年人口无牙颌的患病率随时间推移而下降。然而，需要关注的是受教育程度较低和男性，因为这些人群无牙颌的风险仍然较高。
