{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T12:24:12Z","timestamp":1782390252398,"version":"3.54.5"},"reference-count":31,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2022,12,16]],"date-time":"2022-12-16T00:00:00Z","timestamp":1671148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>The aim was to examine the relationships between oral functions and support\/care-need certification in older people aged \u2265 75 years using the National Health Insurance (NHI) database system and data from Kani City, Gifu, Japan. In total, 732 older Japanese people aged \u2265 75 years who did not have support\/care-need certification and underwent dental check-ups in Kani City in 2017 were followed up until 2020. Chewing state, tongue and lip function, and swallowing function were assessed by a self-administered questionnaire, an oral diadochokinesis test, and a repetitive saliva-swallowing test, respectively. The presence or absence of systemic diseases and of support\/care-need certification was based on data collected by the NHI database. At follow up, 121 (17%) participants had support\/care-need certification. The participants with support\/care-need certification included more women (p &lt; 0.001) and older people (p &lt; 0.001); and had more hypertension (p = 0.003), musculoskeletal disorders (p &lt; 0.001), pneumonia (p = 0.044), poor chewing state (p &lt; 0.001), and poor swallowing function (p = 0.003) than those without support\/care-need certification. Furthermore, the presence of support\/care-need certification at follow up was associated with sex (woman: odds ratio [OR], 2.120; 95% confidence interval [CI], 1.354 to 3.317), age (OR, 1.203; CI, 1.139 to 1.270), chewing state (poor: OR, 2.534; CI, 1.409 to 4.557), and swallowing function (poor: OR, 2.372; CI, 1.248 to 4.510) at baseline. However, tongue and lip function were not associated with support\/care-need certification. The results indicate that older Japanese people aged \u2265 75 years with a poor chewing state and poor swallowing function at baseline had a higher risk for support\/care-need certification after three years.<\/jats:p>","DOI":"10.3390\/ijerph192416959","type":"journal-article","created":{"date-parts":[[2022,12,19]],"date-time":"2022-12-19T05:55:43Z","timestamp":1671429343000},"page":"16959","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Relationship between Oral Function and Support\/Care-Need Certification in Japanese Older People Aged \u2265 75 Years: A Three-Year Cohort Study"],"prefix":"10.3390","volume":"19","author":[{"given":"Komei","family":"Iwai","sequence":"first","affiliation":[{"name":"Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuji","family":"Azuma","sequence":"additional","affiliation":[{"name":"Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takatoshi","family":"Yonenaga","sequence":"additional","affiliation":[{"name":"Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taketsugu","family":"Nomura","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iwane","family":"Sugiura","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yujo","family":"Inagawa","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yusuke","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seiji","family":"Nakashima","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshikazu","family":"Abe","sequence":"additional","affiliation":[{"name":"Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7806-3365","authenticated-orcid":false,"given":"Takaaki","family":"Tomofuji","sequence":"additional","affiliation":[{"name":"Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,16]]},"reference":[{"key":"ref_1","unstructured":"(2022, October 24). 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