J Dent Hyg Sci.  2019 Sep;19(3):181-189. 10.17135/jdhs.2019.19.3.181.

Differences in Oral Health Status between Rural and Urban Populations of Korean Elders: A Population-Based Study from the Korean National Health and Nutrition Examination Survey VI (2013~2015)

Affiliations
  • 1Department of Dental Hygiene, College of Health Science and Genome-based BioIT Convergence Institute, Sun Moon University, Asan 31460, Korea.
  • 2Dental Research Institution, School of Dentistry, Seoul National University, Seoul 03080, Korea. kej1007@snu.ac.kr

Abstract

BACKGROUND
Edentulism is associated with socioeconomic status, rural residence, and chronic disease, but no studies have investigated edentulism and residence factors together. All information that drives a better understanding of the factors related to edentulism plays an important role in the planning and delivery of appropriate dental services for the elderly by national and oral health professionals. This study was designed to investigate the prevalence of edentulism in adults aged over 60 years in Korea and to examine whether there are differences in dentate status between people living in urban and rural areas after controlling for sociodemographic and other related factors.
METHODS
The data for this study were collected from 2013 to 2015 as part of the Korea National Health and Nutrition Examination Survey VI, those individuals aged over 60 years and who had complete datasets were included (5,071). The number of teeth and residence status were categorized into two groups: edentate and dentate (1 or more); urban and rural. Multiple multivariate logistic regression analyses were sequentially applied to assess the association between dentate status and residence status after adjusting for potential confounders.
RESULTS
Rural areas, lower household income, and lower education levels were associated with a higher edentate rate. The number of teeth was lower in rural areas than in urban areas. After adjusting for various factors, statistically significant associations were present for women, low household income, low education level, poor perceived health status, and alcohol consumption in participants.
CONCLUSION
Elders living in rural areas had poorer oral health than elders living in urban areas. The government will need to provide effective systems for promoting oral health for elders living in rural areas.

Keyword

Aged; Oral health; Residence characteristics

MeSH Terms

Adult
Aged
Alcohol Drinking
Chronic Disease
Dataset
Education
Family Characteristics
Female
Humans
Korea
Logistic Models
Nutrition Surveys*
Oral Health*
Prevalence
Residence Characteristics
Social Class
Tooth
Urban Population*
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