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Age, period and cohort trends in oral health status in South Korean adults

Authors
 Eun-Soo Kim  ;  Baek-Il Kim  ;  Hoi In Jung 
Citation
 COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY, (Epub.), 2020-10 
Journal Title
 COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY 
ISSN
 0301-5661 
Issue Date
2020-10
Keywords
APC analysis ; DMFT index ; number of teeth
Abstract
Objectives: The purpose of this study was to identify the age, period and cohort effects on the changes in oral health status in South Koreans. Methods: The age, period and cohort analysis (APC analysis) of the oral health status was conducted using an aggregated age-by-time period table. The age-by-time period table was formulated using data from the Korea National Oral Health Survey (KNOHS) 2000 and 2006, and the Korea National Health and Nutrition Examination Survey (KNHANES) 2010 and 2015. Two oral health outcomes were measured: the number of teeth and Decayed-Missing-Filled Teeth (DMFT) index. Descriptive analysis by graphical representation and partial least square (PLS) regression was used for APC analysis. Results: Both graphical description and PLS regression showed age and cohort effects in oral health status with the number of teeth decreasing and the DMFT index increasing with age. No period effects were found in either index. The number of teeth increased in the recent birth cohorts. However, the DMFT index showed a reverse J-shaped trend, which worsened in recent birth cohorts. The DMFT index increase in the recent cohort was mainly attributed by an increase in the FT index. Conclusions: The effects of age on the number of teeth and caries highlight the importance of oral health in adulthood. The increased caries experience in recent cohorts may indicate the limitations of the current oral health policy. It would be relevant to explore what determinants cause the changes in oral health status. Future oral health policies should address the new directions to reduce the burden of oral diseases.
Full Text
https://onlinelibrary.wiley.com/doi/10.1111/cdoe.12585
DOI
10.1111/cdoe.12585
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Jung, Hoi In(정회인) ORCID logo https://orcid.org/0000-0002-1978-6926
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180787
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