ArticleHealthcare (Basel, Switzerland)2021
The Association between Olfactory Function and Cognitive Impairment in Older Persons with Cognitive Impairments: A Cross-Sectional Study.
Article in Healthcare (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Olfactory dysfunction in aging and neurodegenerative diseases.Ageing research reviews · 2021Pooled it
- Olfactory Dysfunction and Cognitive Decline: Are They Related?Current allergy and asthma reports · 2025Review
- Nasal microbiome in relation to olfactory dysfunction and cognitive decline in older adults.Translational psychiatry · 2025Article
- Aging-associated sensory decline and Alzheimer's disease.Molecular neurodegeneration · 2024Review
- Article
- Correlations between Gustatory, Olfactory, Cognitive Function, and Age in Healthy Women.Nutrients · 2024Article
- Associations between olfactory dysfunction and cognition: a scoping review.Journal of neurology · 2024Article
- The Association of Allergy-Related and Non-Allergy-Related Olfactory Impairment with Cognitive Function in Older Adults: Two Cross- Sectional Studies.Current Alzheimer research · 2024Article
- SNAP25 is a potential target for early stage Alzheimer's disease and Parkinson's disease.European journal of medical research · 2023Article
- Olfactory function changes and the predictive performance of the Chinese Smell Identification Test in patients with mild cognitive impairment and Alzheimer's disease.Frontiers in aging neuroscience · 2023Article
- A potential biomarker of cognitive impairment: The olfactory dysfunction and its genes expression.Annals of clinical and translational neurology · 2022Article
- Aging-Related Alterations of Glymphatic Transport in Rat:Frontiers in aging neuroscience · 2022Article
- Associations Between Cognitive Function, Depression, and Olfactory Function in Elderly People With Dementia in Korea.Frontiers in aging neuroscience · 2021Article
- Prevalence of decreased olfactory function in adults in a Brazilian population sample.Brazilian journal of otorhinolaryngologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Olfactory function is an emerging topic of research in the fields of cognitive impairment and neurodegenerative diseases. We aimed to confirm the association between olfactory function and cognitive impairment by assessing the olfactory function of older persons with cognitive impairment and identify whether olfactory function is associated with cognitive impairment. For this study, we recruited 117 older people aged ≥65 years with cognitive impairments from a public hospital in Korea. We used the Korean version of the expanded clinical dementia rating scale to evaluate participants' cognitive impairments, and the University of Pennsylvania's smell identification test to assess their olfactory function. Our results indicate a significant negative correlation between olfactory function and all domains of cognitive impairment (memory, orientation, judgement and problem-solving, community affairs, home and hobbies, and personal care). In addition, olfactory function was a factor associated with cognitive impairment in older persons. Therefore, we expect that our results to provide useful data for the development of interventions using olfactory stimulation to improve cognitive function in older persons with cognitive impairment.
Indexed as
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.