Frailty and visual, auditory, olfactory, and taste senses in older patients visiting a frailty outpatient clinic.

Olfactory impairment had the strongest correlation with frailty. Although the sense of smell decreases with disease and aging, olfactory impairment may be correlated with frailty as a symptom of neurodegenerative diseases. Geriatr Gerontol Int 2023; ••: ••-••.