Taste loss as a distinct symptom of COVID-19: A systematic review and meta-analysis

Abstract Chemosensory scientists have been skeptical that reports of COVID-19 taste loss are genuine, in part because before COVID-19, taste loss was rare and often confused with smell loss. Therefore, to establish the predicted prevalence rate of taste loss in COVID-19 patients, we conducted a systematic review and meta-analysis of 376 papers published in 2020–2021, with 241 meeting all inclusion criteria. Additionally, we explored how methodological differences (direct vs. self-report measures) may affect these estimates. We hypothesized that direct prevalence measures of taste loss would be the most valid because they avoid the taste/smell confusion of self-report. The meta-analysis showed that, among 138,897 COVID-19-positive patients, 39.2% reported taste dysfunction (95% CI: 35.34–43.12%), and the prevalence estimates were slightly but not significantly higher from studies using direct (n = 18) versus self-report (n = 223) methodologies (Q = 0.57, df = 1, p = 0.45). Generally, males reported lower rates of taste loss than did females and taste loss was highest in middle-aged groups. Thus, taste loss is a bona fide symptom COVID-19, meriting further research into the most appropriate direct methods to measure it and its underlying mechanisms..

Medienart:

Preprint

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

bioRxiv.org - (2023) vom: 10. Nov. Zur Gesamtaufnahme - year:2023

Sprache:

Englisch

Beteiligte Personen:

Hannum, Mackenzie E. [VerfasserIn]
Koch, Riley J. [VerfasserIn]
Ramirez, Vicente A. [VerfasserIn]
Marks, Sarah S. [VerfasserIn]
Toskala, Aurora K. [VerfasserIn]
Herriman, Riley D. [VerfasserIn]
Lin, Cailu [VerfasserIn]
Joseph, Paule V. [VerfasserIn]
Reed, Danielle R. [VerfasserIn]

Links:

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Themen:

570
Biology

doi:

10.1101/2021.10.09.21264771

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI03275504X