Factors related to subjective evaluation of difficulty in chewing among community‐dwelling older adults

• Published in: Geriatrics & gerontology international 2024-03, Vol.24 (S1), p.327-333
• Main Authors: Seto, Eri, Kosaka, Takayuki, Hatta, Kodai, Mameno, Tomoaki, Mihara, Yusuke, Fushida, Shuri, Murotani, Yuki, Maeda, Erisa, Akema, Suzuna, Takahashi, Toshihito, Wada, Masahiro, Gondo, Yasuyuki, Masui, Yukie, Ishizaki, Tatsuro, Kamide, Kei, Kabayama, Mai, Ikebe, Kazunori
• Format: Article
• Language: English
• Subjects: Aged; Aged, 80 and over; Bite Force; chewing; Dental health; depression; Eating behavior; Female; Food; Humans; Independent Living; Male; Mastication; Mental depression; older adults; Older people; Oral hygiene; Questionnaires; Regression analysis; Rice; subjective evaluation; Surveys and Questionnaires
• ISSN: 1444-1586; 1447-0594
• DOI: 10.1111/ggi.14783

Aim Awareness of difficulty chewing may limit the diversity of food intake in older adults. However, few studies have clarified which factors are related to subjective difficulty in chewing. The aim was to identify factors related to subjective difficulty in chewing in 70‐ and 80‐year‐old Japanese older adults. Methods A total of 1680 participants (792 men, 888 women) were surveyed. Difficulty in chewing was assessed with questionnaires regarding food intake, such as rice, apples, beef, and hard rice crackers. The participants were classified into two groups, the “with difficulty” group (participants who answered “cannot eat,” “can eat with difficulty,” and “can eat if small”) and the “without difficulty” group (participants who answered “can eat without problems”), according to their answers to questionnaires for each food. A logistic regression analysis with subjective difficulty in chewing as the dependent variable was performed for each food. Results Subjective difficulty in chewing was associated with age, occlusal force, and depression for rice; age, number of remaining teeth, occlusal force, and depression for apples; number of remaining teeth, occlusal force, and depression for beef; and number of remaining teeth and occlusal force for hard rice crackers. Conclusions Age, number of remaining teeth, and occlusal force, as well as depression, might be related to subjective evaluation of difficulty chewing in community‐dwelling Japanese older adults. Geriatr Gerontol Int 2024; 24: 327–333. The aim of this study was to identify factors related to subjective difficulty in chewing in 70‐ and 80‐year‐old Japanese older adults. Age, number of teeth, and occlusal force, as well as depression, might be related to subjective difficulty in chewing among older adults. It is necessary to consider psychological status when subjectively self‐assessing masticatory function in older adults, especially regarding soft foods.