ArticleChemical senses2021
Prevalence and correlates of parosmia and phantosmia among smell disorders.
Article in Chemical senses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06283745 (Randomized Clinical Trial of Intranasal Injection of Platelet-Rich Plasma for Treatment of Parosmia), which is not on this map. Cited by 26 papers.
What it found
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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.
Randomized Clinical Trial of Intranasal Injection of Platelet-Rich Plasma for Treatment of Parosmia
Who cites it
26 citing papers in PubMed, 65 citations in OpenAlex.
- Persistent COVID-19 parosmia and olfactory loss post olfactory training: randomized clinical trial comparing central and peripheral-acting therapeutics.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2024Trial
- The Unmet Need of Olfactory Testing in Inflammatory Disorders of the Upper Airways-An EAACI Position Paper.Allergy · 2026Review
- Self-Reported Smell and Taste Disorders in the General Population: A Cross-Sectional Survey in Austria, Germany and Switzerland.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026Article
- Observational
- Real-World Outcomes of 3-Month Olfactory Training on Post-COVID-19 Parosmia.ORL; journal for oto-rhino-laryngology and its related specialties · 2025Article
- Article
- Assessment of olfactory recovery after COVID-19: cross-sectional study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2024Article
- Reduced olfactory performance is associated with changed microbial diversity, oralization, and accumulation of dead biomaterial in the nasal olfactory area.Microbiology spectrum · 2024Article
- Phantosmia in Parkinson's Disease: A Systematic Review of the Phenomenology of Olfactory Hallucinations.Neurology international · 2023Review
- Functional connectivity patterns in parosmia.Behavioral and brain functions : BBF · 2023Article
- Orthonasal and retronasal odor identification in patients with parosmia.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023Article
- Review
- Smell, taste and chemesthesis disorders in patients with the SARS-CoV-2 during Omicron variant pandemic in China.Heliyon · 2023Article
- Olfactory Function and Olfactory Disorders.Laryngo- rhino- otologie · 2023Article
- Parosmia COVID-19 Related Treated by a Combination of Olfactory Training and Ultramicronized PEA-LUT: A Prospective Randomized Controlled Trial.Biomedicines · 2023Article
- Olfactory Dysfunction: Etiology, Diagnosis, and Treatment.Deutsches Arzteblatt international · 2023Review
- Post-viral olfactory loss and parosmia.BMJ medicine · 2023Review
- Proof-of-concept: SCENTinel 1.1 rapidly discriminates COVID-19-related olfactory disorders.Chemical senses · 2023Article
- Proof-of-concept: SCENTinel 1.1 rapidly discriminates COVID-19 related olfactory disorders.medRxiv : the preprint server for health sciences · 2022Article
- Drug-Associated Parosmia: New Perspectives from the WHO Safety Database.Journal of clinical medicine · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
Abstract
Among those many individuals who experience a reduced odor sensitivity (hyposmia/anosmia), some individuals also have disorders that lead to odor distortion, such as parosmia (i.e. distorted odor with a known source), or odor phantoms (i.e. odor sensation without an odor source). We surveyed a large population with at least one olfactory disorder (N = 2031) and found that odor distortions were common (46%), with respondents reporting either parosmia (19%), phantosmia (11%), or both (16%). In comparison to respondents with hyposmia or anosmia, respondents with parosmia were more likely to be female, young, and suffering from post-viral olfactory loss (P < 0.001), while respondents with phantosmia were more likely to be middle-aged (P < 0.01) and experiencing symptoms caused by head trauma (P < 0.01). In addition, parosmia, compared to phantosmia or anosmia/hyposmia, was most prevalent 3 months to a year after olfactory symptom onset (P < 0.001), which coincides with the timeline of physiological recovery. Finally, we observed that the frequency and duration of distortions negatively affects the quality of life, with parosmia showing a higher range of severity than phantosmia (P < 0.001). Previous research often grouped these distortions together, but our results show that they have distinct patterns of demographics, medical history, and loss in quality of life.
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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.