Evidence map›Paper›PMID 41400140›Full record

ArticleThe Annals of otology, rhinology, and laryngology2026

Quality of Life and Chemosensory Function in Post-COVID Patients: Adherence to Olfactory Training.

Stephanie Wiederstein, Stefan Grasl, Verena Rappold, Johanna Stueckler, Roswitha Schneeberger, Christian A Mueller, Bertold Renner

Abstract read
In one paragraph

Article in The Annals of otology, rhinology, and laryngology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Stephanie WiedersteinDepartment of Otorhinolaryngology - Head and Neck Surgery, Medical University of Vienna, Austria.ORCID 0009-0009-1954-9216
Stefan GraslDepartment of Otorhinolaryngology - Head and Neck Surgery, Medical University of Vienna, Austria.
Verena RappoldRehabilitation Clinic Tobelbad, Allgemeine Unfallversicherungsanstalt (AUVA), Graz, Austria.
Johanna StuecklerRehabilitation Clinic Tobelbad, Allgemeine Unfallversicherungsanstalt (AUVA), Graz, Austria.
Roswitha SchneebergerRehabilitation Clinic Tobelbad, Allgemeine Unfallversicherungsanstalt (AUVA), Graz, Austria.
Christian A MuellerDepartment of Otorhinolaryngology - Head and Neck Surgery, Medical University of Vienna, Austria.
Bertold RennerInstitute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate adherence to and effects of standardized olfactory training (OT) after COVID-19 infection.

methodsIn this prospective study, 475 patients (mean age 47.4/SD 9.5 years) with olfactory dysfunction (OD) after COVID-19 infection participated in OT on average 13 months (range 0-31 months) post-infection. Patients were assessed 3 times with an average interval of 3 months using questionnaires on quality of life (QoL), chemosensory functions, and OT adherence.

resultsOverall, 363 patients (76.4%) took part in the first 2 and 49.1% in all 3 testing sessions. Before the initial assessment, 32.8% had performed OT in the past without any instructions, so that merely 9.1% adhered to recommended standards. By the second evaluation, after standardized OT was introduced to the participants, 31.1% (n = 106) reported following the training as recommended, decreasing to 18.5% (n = 43) by the third assessment, indicating that most participants did not complete the recommended duration of at least 12, preferably 24 to 36 weeks of olfactory training. QoL and subjective olfactory acuity significantly improved between the first and following testing sessions (

conclusionOverall, only a small proportion of participants consistently followed OT. Higher adherence, however, was associated with male sex, non-medical profession, older age, and greater impairment in QoL. Nevertheless, on average there was a clear improvement in QoL and subjective sense of smell over the testing period.

Indexed as

COVID-19Olfaction DisordersPatient ComplianceQuality of LifeSmellAdultAgedFemaleHumansMaleMiddle AgedOlfactory TrainingProspective StudiesSARS-CoV-2Surveys and Questionnairesadherencecoronavirusolfactionolfactory dysfunctionolfactory trainingquality of life

Identifiers

PMID41400140
PMCPMC12953665

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.