| Property | Value |
|---|
|
?:abstract
|
-
OBJECTIVE: Coronavirus disease 2019 (COVID-19) is associated with olfactory dysfunction, but the evolution of the olfactory loss and timeline to recovery are largely unknown. This study examines changes in smell sensitivity in COVID-19–positive (COVID+) and COVID-19–negative (COVID–) viral illness during the initial weeks after infection. STUDY DESIGN: Cross-sectional cohort comparison. SETTING: National anonymous surveys. METHODS: Survey participants were queried about smell sensitivity and general health status at the time of COVID-19 testing and in the weeks that followed. RESULTS: In total, 375 (174 COVID+, 201 COVID–) participants completed the survey and 132 (62 COVID+, 70 COVID–) participants completed the 2-week follow-up survey. Normal smell in the COVID+ cohort was less frequent at the time of testing and at follow up (P < .05). Dynamic changes in smell sensitivity in the COVID+ cohort were more frequent in the initial weeks (P < .001). In those with normosmia at the start of infection, 38% of the COVID+ cohort reported worsening smell compared to only 8% in the COVID– cohort (P < .05). Recovery of overall health was associated with normosmia at the time of infection and improvement of smell sensitivity within weeks of infection. CONCLUSION: The COVID+ cohort showed greater dynamic change in smell sensitivity and a higher rate of persistent olfactory dysfunction in the weeks after infection. Normal smell at the time of COVID-19 infection may still worsen before recovery. Overall health recovery after viral illness is associated with improvement in smell sensitivity and the absence of initial anosmia or hyposmia.
|
|
is
?:annotates
of
|
|
|
?:creator
|
|
|
?:doi
|
|
|
?:doi
|
|
|
?:journal
|
|
|
?:license
|
|
|
?:pdf_json_files
|
-
document_parses/pdf_json/20ab8777d879855a904f830f0503b191f9aae92b.json
|
|
?:pmc_json_files
|
-
document_parses/pmc_json/PMC7724426.xml.json
|
|
?:pmcid
|
|
|
?:pmid
|
|
|
?:pmid
|
|
|
?:publication_isRelatedTo_Disease
|
|
|
is
?:relation_isRelatedTo_publication
of
|
|
|
?:sha_id
|
|
|
?:source
|
|
|
?:title
|
-
Temporal Profile of Olfactory Dysfunction in COVID-19
|
|
?:type
|
|
|
?:year
|
|
![[This page as RDF]](https://research.tib.eu/covid-19/static/rdf-icon.gif){kind=icon}