IADR Abstract Archives
Oral Health and Nutritional Intake in the 90-Year-old Elderly
Objectives: To examine relationships between oral health and nutritional intake in the 90-year-old Japanese elderly
Methods: The study uses data from the Niigata Cohort Study. In 2018, 84 subjects (39 males and 45 females) aged 90 years old participated in this study. We collected demographic data, nutritional intake, and higher-level functional capacity by questionnaires. The nutritional intake was assessed by a Brief-type self-administered Diet History Questionnaire (BDHQ), and the higher-level functional capacity was assessed by the Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC). Oral examination, masticatory performance test, saliva test, and body measurement were conducted. Cross-sectional analyses using univariate and multivariate linear regression were then performed at α=0.05.
Results: Multivariate linear regression analyses, adjusting for genders, years of education, undernutrition (BMI≤20), and TMIG-IC, show that masticatory performance positively correlates with the intake of folic acid, vitamin A, B2, calcium, and iron. Stimulated salivary flow positively correlates with the intake of vitamin A, B2, γ-tocopherols, and n-6 fatty acids, but negatively correlates with carbohydrate consumption. The number of remaining teeth positively correlates with the intake of folic acid, calcium, β-carotene, iron, vitamin A, B2, C, and K. We did not find any significant relationships between oral variables and total energy intake, the intake of protein, fat, dietary fiber, zinc, vitamin D, B6, and B12.
Conclusions: Our results suggest that maintaining masticatory performance, salivation, and tooth numbers may facilitate the higher intake of several micronutrients in oldest-old Japanese people.
Methods: The study uses data from the Niigata Cohort Study. In 2018, 84 subjects (39 males and 45 females) aged 90 years old participated in this study. We collected demographic data, nutritional intake, and higher-level functional capacity by questionnaires. The nutritional intake was assessed by a Brief-type self-administered Diet History Questionnaire (BDHQ), and the higher-level functional capacity was assessed by the Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC). Oral examination, masticatory performance test, saliva test, and body measurement were conducted. Cross-sectional analyses using univariate and multivariate linear regression were then performed at α=0.05.
Results: Multivariate linear regression analyses, adjusting for genders, years of education, undernutrition (BMI≤20), and TMIG-IC, show that masticatory performance positively correlates with the intake of folic acid, vitamin A, B2, calcium, and iron. Stimulated salivary flow positively correlates with the intake of vitamin A, B2, γ-tocopherols, and n-6 fatty acids, but negatively correlates with carbohydrate consumption. The number of remaining teeth positively correlates with the intake of folic acid, calcium, β-carotene, iron, vitamin A, B2, C, and K. We did not find any significant relationships between oral variables and total energy intake, the intake of protein, fat, dietary fiber, zinc, vitamin D, B6, and B12.
Conclusions: Our results suggest that maintaining masticatory performance, salivation, and tooth numbers may facilitate the higher intake of several micronutrients in oldest-old Japanese people.