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KMID : 1143320230120030061
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Therapeutic Science for Neurorehabilitation
2023 Volume.12 No. 3 p.61 ~ p.77
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Association Between Cognitive Impairment and Oral Health Related Quality of Life: Using Propensity Score Approaches
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Cha Sun-A
Bae Su-Yeong
Nam Sang-Hun
Hong Ick-Pyo
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Abstract
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Objective : This study analyzed the correlation between cognitive function and oral health-related quality of life (OHQoL).
Methods : Demographic and clinical characteristics were extracted and utilized for subjects aged 45 years or older who participated in the 8th Korean Longitudinal Study on Aging in 2020. The dependent variable was the Geriatric Oral Health Assessment Index, and the independent variable was the level of cognitive function classified by the Mini-Mental State Examination scores. The analysis method used inverse probability of treatment weighting (IPTW). Then, the association between cognitive function and OHQoL was analyzed by multiple regression analysis.
Results : Among the participants, 4,367 (71.40%) had normal cognition, 1,155 (18.89%) had moderate cognitive impairment, and 594 (9.71%) had severe cognitive impairment. As a result of analysis by applying IPTW, there was a negative correlation between the cognitive function group and OHQoL (normal vs. moderate: β = -2.534, p < .0001; normal vs. severe: β = -2.452, p < .0001).
Conclusion : After propensity score matching, mild cognitive impairment showed a more negative association than severe cognitive impairment. Therefore, patients with cognitive impairment require oral health management education to improve OHQoL regardless of the level of cognitive impairment.
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KEYWORD
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Cognitive impairment, Inverse probability of treatment weighting, Korean Longitudinal Study of Ageing, Oral health-related quality of life, Propensity score
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