Association of Number of Teeth with ADL/IADL in Korean Middle-Aged and Older Adults: An Analysis of the 7th Korean Longitudinal Study of Aging

Nu-Ri Jun, Jae-Hyun Kim, Jong-Tae Park () and Jong-Hwa Jang ()
Additional contact information
Nu-Ri Jun: Department of Public Health, Graduate School, Dankook University, Cheonan-si 31116, Korea
Jae-Hyun Kim: Department of Public Health, Graduate School, Dankook University, Cheonan-si 31116, Korea
Jong-Tae Park: Department of Oral Anatomy, College of Dentistry, Dankook University, Cheonan-si 31116, Korea
Jong-Hwa Jang: Department of Public Health, Graduate School, Dankook University, Cheonan-si 31116, Korea

IJERPH, 2022, vol. 19, issue 19, 1-13

Abstract: We determined the association between the number of natural and implant teeth with activities of daily living (ADL) and instrumental ADL (IADL) levels in middle-aged and older adults aged ≥ 55 years. We included 6,925 participants, who underwent a computer-assisted personal interview in the 7th Korean Longitudinal Study of Aging. After controlling for general characteristics, the associations between the number of natural and implant teeth with ADL and IADL levels were examined using multiple regression analysis. The participants had 21.2 natural teeth and 1.08 implant teeth on average. The ADL and IADL levels were 0.61 and 1.56, 0.40 and 1.16, and 1.10 and 0.31 in participants with ≤ 9, 10–19, and ≥ 20 teeth, respectively. There was no significant association between ADL and the number of natural and implant teeth ( p > 0.05). However, a one-unit increase in IADL score was associated with a reduced number of natural (β = −0.031, p < 0.001) and implant (β = −0.194, p = 0.006) teeth. Difficulties regarding IADL were associated with fewer natural and implant teeth, suggesting that maintaining and managing the number of teeth is critical to promoting the health of middle-aged and older adults.

Keywords: age; ADL; IADL; dentistry; natural teeth; dental implant; middle-aged adult; older adult (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/1660-4601/19/19/12840/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/19/12840/ (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:19:p:12840-:d:935487

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 ().