Cognitive impairment and depressive symptoms lead to biases in self-evaluated masticatory performance among community-dwelling older Japanese adults: the Tsurugaya Project

Journal of Dentistry
Takamasa KomiyamaYoshinori Hattori

Abstract

This cross-sectional study aims to examine if cognitive impairment, depressive symptoms, and their combination are associated with biases between self-evaluated and measured masticatory performance in community-dwelling older Japanese adults. The sample constituted of 804 community-dwelling elderly Japanese individuals aged ≥70 years. Cognitive impairment and depressive symptoms were assessed using the Mini-Mental State Examination and Geriatric Depression Scale, respectively. Self-evaluated masticatory performance (SMP) was assessed for 10 food items. Measured masticatory performance (MMP) was assessed as the maximum occlusal force, which is a surrogate indicator. Multivariate logistic regression was applied to examine the associations of cognitive impairment, depressive symptoms, and their combination with the deviation between SMP and MMP, SMP overestimation, and SMP underestimation, with adjustment for age, sex, body mass index, smoking, alcohol consumption, duration of education, medical history, physical function, regular dental visits, and number of teeth. Cognitive impairment was significantly associated with SMP overestimation (odds ratio [OR]: 2.37, 95% confidence interval [CI]: 1.25-4.50); in parallel, SMP underestim...Continue Reading

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