Journal of Preventive Medicine and Public Health

Original Article

Association Between Dental Implants and Cognitive Function in Community-dwelling Older Adults in Korea: Seungkook Ki, Jihye Yun, Jinhee Kim, Yunhwan Lee; J Prev Med Public Health. 2019;52(5):333-343. Published online September 20, 2019; DOI: https://doi.org/10.3961/jpmph.19.163

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Abstract Summary PDF Supplementary Material

Objectives
This study aimed to evaluate the association between dental implants and cognitive function in community-dwelling older adults.
Methods
Data were collected from the baseline survey (2016-2017) of the Korean Frailty and Aging Cohort Study. The study sample comprised 1115 community-dwelling people aged 70 years to 84 years who had 0-19 natural teeth. Dental implants and natural teeth were identified by panoramic radiography, while the cognitive function was assessed by the Korean version of the Mini-Mental State Examination (MMSE-KC). The association between dental implants and cognitive function was analyzed by multiple linear regression. Sensitivity analysis was performed to test for potential bias.
Results
The mean number of natural teeth in the study population was 9.50 (standard deviation [SD], 6.42), and the mean MMSE-KC score was 24.93 (SD, 3.55). In the simple univariate analysis, tooth replacement, age, sex, smoking status, alcohol consumption, body mass index, osteoporosis, number of natural teeth, periodontitis, chewing discomfort, tooth-brushing frequency, education level, monthly household income, participation in economic activity, living alone, and marital status had a significant impact on the association. After adjusting for confounders, the association between dental implants and cognitive function remained significant (B, 0.85; standard error, 0.40; p<0.05). Age, body mass index, periodontitis, tooth-brushing frequency, and education level were also significantly associated with cognitive function. The results of the sensitivity analyses were consistent with those of the primary analysis.
Conclusions
Dental implants were associated with cognitive function in older adults living in the community. Dental implants as tooth replacements may play a role in preserving cognitive function.

Summary

Korean summary
임플란트 내지 임플란터블 디바이스는 생활 양식에 미치는 영향이 적고 직접적인 행동이나 복잡한 기술을 덜 필요로 하므로 임플란트는 라이프스타일 변경보다 더 수정성이 있는 효과적인 개입이 될 수 있다. 이 연구에서는 임플란터블 디바이스의 일종인 치아 임플란트와 인지 기능 사이의 관계를 조사하였다. 연구 결과 70세 이상의 지역사회 거주 노인에 있어 치아 탈락의 치료로서 치아 임플란트가 인지 기능과 연관성이 있음을 보여주었다. 치아 임플란트는 인지 예비능력의 보존에 기여하는 것으로 생각되며, 지역 사회 거주 노인에서 인지 저하의 예방으로서 치아 임플란트 치료를 충분히 고려해볼 수 있을 것이다.

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Editorials

Our Valuable Contributors: Reviewers of 2013: Yunhwan Lee; J Prev Med Public Health. 2014;47(2):73-73. Published online March 31, 2014; DOI: https://doi.org/10.3961/jpmph.2014.47.2.73

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Recognizing Our Peer Reviewers of 2012: Yunhwan Lee; J Prev Med Public Health. 2013;46(2):61-61. Published online March 28, 2013; DOI: https://doi.org/10.3961/jpmph.2013.46.2.61

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Physical Activity for Health: Evidence, Theory, and Practice: Jin-Jong Chen, Yunhwan Lee; J Prev Med Public Health. 2013;46(Suppl 1):S1-S2. Published online January 30, 2013; DOI: https://doi.org/10.3961/jpmph.2013.46.S.S1

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Thanks to Our Peer Reviewers of 2011: Yunhwan Lee; J Prev Med Public Health. 2012;45(2):61-61. Published online March 31, 2012; DOI: https://doi.org/10.3961/jpmph.2012.45.2.61

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A More Efficient Way to Publish: JPMPH Goes Electronic.: Yunhwan Lee; J Prev Med Public Health. 2011;44(1):1-1.; DOI: https://doi.org/10.3961/jpmph.2011.44.1.1

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Abstract PDF: No abstract available.; Summary

Bringing Up-to-Date Public Health Research to Your Doorstep.: Yunhwan Lee; J Prev Med Public Health. 2010;43(1):93-94.; DOI: https://doi.org/10.3961/jpmph.2010.43.1.93

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Abstract PDF: No abstract available.; Summary

English Abstract

Association of Social Support and Social Activity with Physical Functioning in Older Persons.: Kyunghye Park, Yunhwan Lee; J Prev Med Public Health. 2007;40(2):137-144.; DOI: https://doi.org/10.3961/jpmph.2007.40.2.137

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Abstract PDF

OBJECTIVES
According to Rowe and Kahn (1998), successful aging is the combination of a low probability of disease, high functioning, and active engagement with life. The purpose of this study was to assess the relationship between active engagement with life and functioning among the community-dwelling elderly. METHODS: Data were collected from Wave 2 of the Suwon Longitudinal Aging Study (SLAS), consisting of a sample of 645 persons aged 65 and older living in the community. A social activity checklist and social support inventory were used as measures of engagement with life, along with the Physical Functioning (PF) scale as a measure of functioning. The effects of social support and social activity on physical functioning, taking into account the covariates, were analyzed by hierarchical linear regression analysis. RESULTS: Maintenance of social activity and social support were significantly associated with higher physical function, after adjusting for sociodemographic and healthrelated covariates. Social support appeared to be more prominent than social activity in predicting physical functioning. CONCLUSIONS: Social support and social activity are potentially modifiable factors associated with physical function in older persons. Studies examining the role social engagement may play in preventing disability are warranted.

Summary

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Original Articles

Factors Associated with Physical Functioning among Community-Dwelling Older Adults.: Yunhwan Lee, Kwisook Choi; Korean J Prev Med. 1999;32(3):325-332.

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Abstract PDF: OBJECTIVES
The aim of this study is to identify major factors associated with physical functioning among the Korean elderly. METHODS: Data come from a survey of a nationally representative sample of 2,058 older people aged 60 years or older living in the community. A hierarchical functioning scale was constructed, using upper and lower body mobility, IADLs, and ADLs. Socioeconomic characteristics, chronic conditions, measures of health status, health service use, and social support were analyzed to explore their influence on functioning. Polytomous logistic regression analysis was conducted to identify major contributing factors to different levels of functioning. RESULTS: Persons of older age, female, with chronic diseases (heart disease, stroke, fracture/dislocation) were consistently more likely to show a higher degree of functional limitation. There were variations, however, among other factors; e.g., those with arthritis were more likely to be only mildly impaired, but not moderately or severely impaired. CONCLUSIONS: Older Korean adults living in the community with impaired functioning constitute persons with diverse characteristics. Policy and program activities need to address specific needs of older people in different functioning states.; Summary

Association of Dietary Factors with Cognitive Impairment in Older Women.: Jin Hee Kim, Yunhwan Lee, Geunshik Han; J Prev Med Public Health. 2004;37(2):174-181.

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Abstract PDF: OBJECTIVE
To examine the association between dietary factors and cognitive impairment in older Korean women living in the community. METHODS: Wave 2 data, from the Suwon Longitudinal Aging Study (SLAS), of 365 women aged 65 years or over, were used. The Korean version of the 30-point Mini-Mental State Examination (MMSE-K) was used to assess cognitive impairment (score< = or19). Dietary habits and frequencies of food group consumption were also examined. RESULTS: A total of 67 women (18.4%) were found to be cognitively impaired. In bivariate analyses, nondietary factors, such as age, marital status, education, income, self-rated health, depression, emotional support, social activity, exercise, and dietary factors, such as self-rated nutritional status, frequency of beans and bean products and milk and dairy products consumption were associated with cognitive impairment. In the multivariate analysis, a higher frequency ( > = or 1 vs. < 1 time/day) of beans and bean products (OR=0.48, 95% CI: 0.23-0.99) and milk and dairy products (OR=0.25, 95% CI: 0.10-0.61) consumption was inversely associated with cognitive impairment, after adjustment for non-dietary factors. CONCLUSION: These results suggest that dietary factors may play a significant role in cognitive impairment of older Korean women.; Summary

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