ArticleScientific reports2020
Assessment of odor hedonic perception: the Sniffin' sticks parosmia test (SSParoT).
Article in Scientific reports, 2020. 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 33 papers, 3 of them syntheses that pooled it.
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
33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.
- The Development and Validation of the Smell-Qx Questionnaire, Based on a Systematic Review of the Literature and the COMET Initiative on the Development of Core Outcome Sets for Clinical Trials in Olfactory Disorders.International forum of allergy & rhinology · 2025Pooled it
- Qualitative Olfactory Dysfunction and COVID-19: An Evidence-Based Review with Recommendations for the Clinician.American journal of rhinology & allergy · 2023Pooled it
- The assessment of qualitative olfactory dysfunction in COVID-19 patients: a systematic review of tools and their content validity.Frontiers in psychology · 2023Pooled it
- The APOLLO trial: a proof-of-concept study for vitamin A nasal drops in COVID-19-related postinfectious olfactory dysfunction.Chemical senses · 2026Trial
- Recovery of Parosmia Preferentially Influences Longitudinal Improvement of Quality of Life in C19OD.International forum of allergy & rhinology · 2026Article
- The Unmet Need of Olfactory Testing in Inflammatory Disorders of the Upper Airways-An EAACI Position Paper.Allergy · 2026Review
- Article
- Changes in the Epidemiology of Pediatric Olfactory Dysfunction Before and After COVID-19 Pandemic.Laryngoscope investigative otolaryngology · 2026Article
- Differences in smell and taste performance and food liking between patients with stroke and healthy controls.Scientific reports · 2025Article
- Towards universal chemosensory testing: needs, barriers, and opportunities.Chemical senses · 2025Article
- Parosmia: Pathophysiology and Management.Current allergy and asthma reports · 2025Review
- 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
- Personalized medicine in olfactory testing: perspectives to improve patient compliance to psychophysical tests.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
- Patient Experience and Preferences for the Assessment of Olfaction: The Patient International Clinical Assessment of Smell Survey.ORL; journal for oto-rhino-laryngology and its related specialties · 2024Article
- A parosmia severity index based on word-classification predicts olfactory abilities and impairment.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
- Persistent post-COVID-19 dysosmia: Practices survey of members of the French National Union of Otorhinolaryngology-Head and Neck Surgery Specialists. CROSS analysis.European annals of otorhinolaryngology, head and neck diseases · 2023Article
- Olfactory Function and Olfactory Disorders.Laryngo- rhino- otologie · 2023Article
- Olfactory Dysfunction: Etiology, Diagnosis, and Treatment.Deutsches Arzteblatt international · 2023Review
- Proof-of-concept: SCENTinel 1.1 rapidly discriminates COVID-19-related olfactory disorders.Chemical senses · 2023Article
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
No grant is acknowledged in the PubMed record.
Abstract
Qualitative olfactory dysfunction is characterized as distorted odor perception and can have a profound effect on quality of life of affected individuals. Parosmia and phantosmia represent the two main subgroups of qualitative impairment and are currently diagnosed based on patient history only. We have developed a test method which measures qualitative olfactory function based on the odors of the Sniffin' Sticks Identification subtest. The newly developed test is called Sniffin' Sticks Parosmia Test (SSParoT). SSParoT uses hedonic estimates of two oppositely valenced odors (pleasant and unpleasant) to assess hedonic range (HR) and hedonic direction (HD), which represent qualitative olfactory perception. HR is defined as the perceivable hedonic distance between two oppositely valenced odors, while HD serves as an indicator for overall hedonic perception of odors. This multicenter study enrolled a total of 162 normosmic subjects in four consecutive experiments. Cluster analysis was used to group odors from the 16-item Sniffin' Sticks Identification test and 24-additional odors into clusters with distinct hedonic properties. Eleven odor pairs were found to be suitable for estimation of HR and HD. Analysis showed agreement between test-retest sessions for all odor pairs. SSparoT might emerge as a valuable tool to assess qualitative olfactory function in health and disease.
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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.