July 7, 2020

Self-reported alteration of sense of smell or taste in patients with COVID-19: a systematic review and meta-analysis on 3563 patients

Category: Article Summary

Topic: Clinical Characteristics and Health Care Setting

• Borsetto et al. conducted a systematic review and meta-analysis (18 studies with 3,563 patients) that assessed the prevalence of self-reported altered sense of smell or taste in patients with confirmed COVID-19. They found alterations in smell or taste among 31% of participants with severe COVID-19 and 67% of participants with mild-to-moderate COVID-19, with an overall prevalence of 47%. In 20% of participants, the alteration preceded other symptoms, suggesting the value of isolating patients complaining of smell or taste impairment. 

Borsetto et al. (May 13, 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 Journal. https://doi.org/10.4193/Rhin20.185