Association between Mixing Ability of Masticatory Functions Measured Using Color-Changing Chewing Gum and Frailty among Japanese Older Adults: The Kyoto–Kameoka Study

Daiki Watanabe, Tsukasa Yoshida, Keiichi Yokoyama, Yasuko Yoshinaka, Yuya Watanabe, Takeshi Kikutani, Mitsuyoshi Yoshida, Yosuke Yamada, Misaka Kimura and Kyoto-Kameoka Study Group
Additional contact information
Daiki Watanabe: National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan
Tsukasa Yoshida: National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan
Keiichi Yokoyama: Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan
Yasuko Yoshinaka: Center for Faculty Development, Kyoto University of Advanced Science, Kyoto 621-8555, Japan
Yuya Watanabe: National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan
Takeshi Kikutani: Division of Rehabilitation for Speech and Swallowing Disorders, Nippon Dental University, Tokyo 184-0011, Japan
Mitsuyoshi Yoshida: Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima 739-0046, Japan
Yosuke Yamada: National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan
Misaka Kimura: Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan
Kyoto-Kameoka Study Group: National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan

IJERPH, 2020, vol. 17, issue 12, 1-14

Abstract: The relationship between mixing ability of masticatory functions and frailty has not been well evaluated. This study investigated the prevalence of physical and comprehensive frailty and its association with mixing ability in 1106 older adults aged ?65 years who underwent physical examination as part of the Japanese Kyoto–Kameoka Study. Mixing ability was assessed using color-changing chewing gum (1–5 points, 5 representing the best mixing ability). Participants were divided into four groups (5 points, 4 points, 3 points, and 1 or 2 points). The modified Japanese versions of the Cardiovascular Health Study (mJ-CHS) criteria and the validated Kihon Checklist (KCL) were used to assess physical and comprehensive frailty, respectively. Multivariate logistic regression was used to evaluate the association between frailty and mixing ability. The prevalence of physical and comprehensive frailty was 11.8% and 27.9%, respectively. After adjusting for confounders, the odds ratios of physical and comprehensive frailty comparing the highest to the lowest chewing gum score groups were 3.64 (95% confidence interval (CI): 1.62 to 8.18; p for trend = 0.001) and 2.09 (95% CI: 1.09 to 4.03; p for trend = 0.009), respectively. Mixing-ability tests involving chewing gum may be an indicator associated with both physical and comprehensive frailty.

Keywords: mixing ability; color-changing chewing gum; frailty; older adults; cross-sectional study (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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