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Self-reported alteration of sense of smell or taste in patients with COVID-19: a systematic review and meta-analysis on 3563 patients.
Rhinology. 2020 Oct 01; 58(5):430-436.R

Abstract

BACKGROUND

Emerging reports suggest that new onset of smell or taste loss are potential early clinical markers of SARS-CoV-2 infection, but it remains unclear as to what extent. Therefore, the purpose of this study is to systematically assess the prevalence of self-reported altered sense of smell or taste in patients with confirmed SARS-CoV-2 infection, overcoming the limitations of individual studies by meta-analysis of pooled data.

METHODS

The databases Medline, Embase, Web of Science, Scopus and MedRxiv's set were searched from inception to the 4th May 2020. This study was conducted following the PRISMA checklist.

RESULTS

18 studies met the eligibility criteria out of the 171 initially screened citations. The overall prevalence of alteration of the sense of smell or taste was 47% , but estimates were 31% and 67% in severe and mild-to-moderate symptomatic patients, respec- tively. The loss of smell and taste preceded other symptoms in 20% of cases and it was concomitant in 28%.

CONCLUSIONS

Based on this meta-analysis, we recommend self-isolation and testing, where possible, for patients complaining smell or taste impairment during COVID-19 pandemic in order to prevent spread of disease and propose the inclusion of loss of smell and taste as recognized symptoms of SARS-CoV-2 in the World Health Organization and other relevant regulatory body's lists.

Authors+Show Affiliations

Department of Otolaryngology, Guys and St. Thomas Hospital NHS Foundation Trust, London, United Kingdom.Department of Otolaryngology, Guys and St. Thomas Hospital NHS Foundation Trust, London, United Kingdom.University of Cambridge Medical Library, Cambridge, United Kingdom.Department of Otolaryngology, Guys and St. Thomas Hospital NHS Foundation Trust, London, United Kingdom.Section of Otorhinolaryngology, Azienda Sanitaria Universitaria Integrata di Trieste, Trieste, Italy.Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy.Department of Neurosciences, Section of Otorhinolaryngology, University of Padova, Treviso, Italy.

Pub Type(s)

Journal Article
Meta-Analysis
Systematic Review

Language

eng

PubMed ID

32626853

Citation

Borsetto, D, et al. "Self-reported Alteration of Sense of Smell or Taste in Patients With COVID-19: a Systematic Review and Meta-analysis On 3563 Patients." Rhinology, vol. 58, no. 5, 2020, pp. 430-436.
Borsetto D, Hopkins C, Philips V, et al. Self-reported alteration of sense of smell or taste in patients with COVID-19: a systematic review and meta-analysis on 3563 patients. Rhinology. 2020;58(5):430-436.
Borsetto, D., Hopkins, C., Philips, V., Obholzer, R., Tirelli, G., Polesel, J., & Boscolo-Rizzo, P. (2020). Self-reported alteration of sense of smell or taste in patients with COVID-19: a systematic review and meta-analysis on 3563 patients. Rhinology, 58(5), 430-436. https://doi.org/10.4193/Rhin20.185
Borsetto D, et al. Self-reported Alteration of Sense of Smell or Taste in Patients With COVID-19: a Systematic Review and Meta-analysis On 3563 Patients. Rhinology. 2020 Oct 1;58(5):430-436. PubMed PMID: 32626853.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Self-reported alteration of sense of smell or taste in patients with COVID-19: a systematic review and meta-analysis on 3563 patients. AU - Borsetto,D, AU - Hopkins,C, AU - Philips,V, AU - Obholzer,R, AU - Tirelli,G, AU - Polesel,J, AU - Boscolo-Rizzo,P, PY - 2020/7/7/pubmed PY - 2020/11/12/medline PY - 2020/7/7/entrez SP - 430 EP - 436 JF - Rhinology JO - Rhinology VL - 58 IS - 5 N2 - BACKGROUND: Emerging reports suggest that new onset of smell or taste loss are potential early clinical markers of SARS-CoV-2 infection, but it remains unclear as to what extent. Therefore, the purpose of this study is to systematically assess the prevalence of self-reported altered sense of smell or taste in patients with confirmed SARS-CoV-2 infection, overcoming the limitations of individual studies by meta-analysis of pooled data. METHODS: The databases Medline, Embase, Web of Science, Scopus and MedRxiv's set were searched from inception to the 4th May 2020. This study was conducted following the PRISMA checklist. RESULTS: 18 studies met the eligibility criteria out of the 171 initially screened citations. The overall prevalence of alteration of the sense of smell or taste was 47% , but estimates were 31% and 67% in severe and mild-to-moderate symptomatic patients, respec- tively. The loss of smell and taste preceded other symptoms in 20% of cases and it was concomitant in 28%. CONCLUSIONS: Based on this meta-analysis, we recommend self-isolation and testing, where possible, for patients complaining smell or taste impairment during COVID-19 pandemic in order to prevent spread of disease and propose the inclusion of loss of smell and taste as recognized symptoms of SARS-CoV-2 in the World Health Organization and other relevant regulatory body's lists. SN - 0300-0729 UR - https://www.unboundmedicine.com/medline/citation/32626853/Self_reported_alteration_of_sense_of_smell_or_taste_in_patients_with_COVID_19:_a_systematic_review_and_meta_analysis_on_3563_patients_ L2 - https://www.rhinologyjournal.com/Abstract.php?id=2541 DB - PRIME DP - Unbound Medicine ER -