Ann Geriatr Med Res.
2024 Jun;28(2):178-183. 10.4235/agmr.23.0217.
Association of Olfactory and Gustatory Function with Memory among Community-Dwelling Independent Older Adults
- Affiliations
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- 1Department of Physical Therapy, School of Health Sciences, Kagoshima University, Kagoshima, Japan
- 2Department of Mechanical Systems Engineering, Faculty of Engineering, Daiichi Institute of Technology, Kagoshima, Japan
- 3Graduate School of Health Sciences, Kagoshima University, Kagoshima, Japan
- 4Department of Rehabilitation, Faculty of Nursing and Welfare, Kyushu University of Nursing and Social Welfare, Tamana, Kumamoto, Japan
- 5Department of Otorhinolaryngology, Kanazawa Medical University, Uchinada, Ishikawa, Japan
- 6Center for Comprehensive Care on Memory Disorders, Kanazawa Medical University, Uchinada, Ishikawa, Japan
- KMID: 2556719
- DOI: http://doi.org/10.4235/agmr.23.0217
Abstract
- Background
This study examined the association between memory function and reduced olfactory and gustatory function among independent community-dwelling older adults.
Methods
This cross-sectional study included 127 older adults (65.4% women). We assessed their memory, odor, and taste identification skills. Open essence (OE) test and taste strips (TS) were used to identify hyposmia (OE test ≤6) and hypogeusia (TS test ≤8), respectively.
Results
Participants with severe hyposmia had significantly poorer memory functions compared to participants without severe hyposmia. After adjusting for covariates, multivariate logistic regression models revealed a significant association between immediate recognition performance and a decreased likelihood of severe hyposmia (odds ratio=0.65; 95% confidence interval 0.47–0.90). We observed no significant association between taste function and memory.
Conclusion
Memory function may be associated with olfactory impairment in older adults.
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