Relationship between Oral Function and Support/Care-Need Certification in Japanese Older People Aged ≥ 75 Years: A Three-Year Cohort Study

Komei Iwai, Tetsuji Azuma, Takatoshi Yonenaga, Taketsugu Nomura, Iwane Sugiura, Yujo Inagawa, Yusuke Matsumoto, Seiji Nakashima, Yoshikazu Abe and Takaaki Tomofuji ()
Additional contact information
Komei Iwai: Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan
Tetsuji Azuma: Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan
Takatoshi Yonenaga: Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan
Taketsugu Nomura: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Iwane Sugiura: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Yujo Inagawa: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Yusuke Matsumoto: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Seiji Nakashima: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Yoshikazu Abe: Gifu Dental Association, 1-18 Minamidori, Kano-cho, Gifu 500-8486, Japan
Takaaki Tomofuji: Department of Community Oral Health, School of Dentistry, Asahi University, 1851 Hozumi, Mizuho 501-0296, Japan

IJERPH, 2022, vol. 19, issue 24, 1-9

Abstract: The aim was to examine the relationships between oral functions and support/care-need certification in older people aged ≥ 75 years using the National Health Insurance (NHI) database system and data from Kani City, Gifu, Japan. In total, 732 older Japanese people aged ≥ 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 < 0.001) and older people ( p < 0.001); and had more hypertension ( p = 0.003), musculoskeletal disorders ( p < 0.001), pneumonia ( p = 0.044), poor chewing state ( p < 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 ≥ 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.

Keywords: chewing state; longitudinal study; older people; swallowing function; support/care-need certification (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/24/16959/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/24/16959/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2022:i:24:p:16959-:d:1006163

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().