ArticleJournal of Korean medical science2021
Clinical Features of Olfactory Dysfunction in COVID-19 Patients.
Article in Journal of Korean medical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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
8 citing papers in PubMed.
- Olfactory Function Recovery in Endoscopic Transsphenoidal Pituitary Surgery.International forum of allergy & rhinology · 2025Article
- Subjective distress mediates the association between olfactory dysfunction duration and depression in post COVID 19 patients.Scientific reports · 2025Article
- Normative Parameters of Olfactory Bulbs Based on Magnetic Resonance Imaging and Olfactory Function.Journal of Korean medical science · 2024Article
- A Pilot Study of the Computerized Brief Smell Identification Test.Diagnostics (Basel, Switzerland) · 2024Article
- Reliability and validity of the Polish version of the Questionnaire of Olfactory Disorders.Laryngoscope investigative otolaryngology · 2023Article
- SARS-CoV-2 Infection (COVID-19) and Rhinologic Manifestation: Narrative Review.Journal of personalized medicine · 2022Review
- Kampo Medicine Promotes Early Recovery From Coronavirus Disease 2019-Related Olfactory Dysfunction: A Retrospective Observational Study.Frontiers in pharmacology · 2022Article
- Treatment and Prognosis of COVID-19 Associated Olfactory and Gustatory Dysfunctions.Journal of personalized medicine · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
backgroundThe aim of this study was to evaluate the subjective and objective olfactory function in coronavirus disease 2019 (COVID-19) patients and the effect of olfactory training.
methodsA prospective cohort study was performed in 53 patients who recovered from COVID-19 and visited our tertiary hospital. Subjective olfactory function was evaluated using the 11-point Likert scale (0-10) and the Korean version of the Questionnaire of Olfactory Disorders (QOD). Objective olfactory function was evaluated using Cross-Cultural Smell Identification Test (CC-SIT). Confirmed patients were followed up after 2 months of olfactory training.
resultsThe median, interquartile range (Q1-Q3) score of subjective olfactory function significantly deteriorated in patients with olfactory dysfunction (OD) than in those without OD, even after 3 months of onset (11-point Likert scale, 8, 6-9 vs. 10, 10-10; short version of QOD-negative statements, 19, 16-21 vs. 21, 21-21; QOD-visual analogue scale, 7, 1-13 vs. 0, 0-0; all
conclusionAlthough subjective olfactory function is significantly decreased in the OD group, the objective olfactory function was not significantly different. Moreover, olfactory training is effective in COVID-19 patients with OD.
Indexed as
Identifiers
What OpenQuestion 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 OpenQuestion graph.