Ear, nose, & throat journal · 2021
Association between olfactory dysfunction and COVID-19 severity: A prospective study in a highly complex hospital in Peru.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод в очереди
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Alcas Olenka, Saldaña Diego, Triveño Andy, Salazar Miguel, Mejía Paola
Аннотация
INTRODUCTION: Olfactory dysfunction has been included among the early symptoms of coronavirus disease (COVID-19). Evidence suggests that a relationship exists between the duration of olfaction disorders and the probability of developing severe COVID-19. Given the scope of the COVID-19 pandemic, this study aimed to determine the frequency of smell alteration and its association with the severity of COVID-19 in a referral hospital in Peru, which is one of the most affected countries in the Latin American region.
MATERIALS AND METHODS: This study was an observational, prospective cohort study that included patients with COVID-19 who were treated at the Hospital Nacional Edgardo Rebagliati Martins from August to November 2020. To assess the association, the chi-square test of independence or Fisher's exact test was performed. The outcome variable was COVID-19 severity, and the exposure variable was olfactory dysfunction. The first data collection was in the emergency department and the follow-up was via telephone.
RESULTS: A total of 179 patients were included. The mean age was 61.6 ± 15.5 years, and 129 patients (72.1%) were male. Olfactory dysfunction was observed in 43 patients (24%). An inverse association was found between age and olfactory dysfunction (P = .002). No significant association was found between COVID-19 severity level and olfactory alteration (P = .056). However, a direct association was found between COVID-19 severity and age (P = .003), cough (P < .001), and respiratory distress (P = .003).
CONCLUSION: This study did not find any association between the severity of COVID-19 and olfactory dysfunction. It showed a low incidence rate of smell alteration compared with studies from other regions. Moreover, smell alteration was associated with younger age.
MATERIALS AND METHODS: This study was an observational, prospective cohort study that included patients with COVID-19 who were treated at the Hospital Nacional Edgardo Rebagliati Martins from August to November 2020. To assess the association, the chi-square test of independence or Fisher's exact test was performed. The outcome variable was COVID-19 severity, and the exposure variable was olfactory dysfunction. The first data collection was in the emergency department and the follow-up was via telephone.
RESULTS: A total of 179 patients were included. The mean age was 61.6 ± 15.5 years, and 129 patients (72.1%) were male. Olfactory dysfunction was observed in 43 patients (24%). An inverse association was found between age and olfactory dysfunction (P = .002). No significant association was found between COVID-19 severity level and olfactory alteration (P = .056). However, a direct association was found between COVID-19 severity and age (P = .003), cough (P < .001), and respiratory distress (P = .003).
CONCLUSION: This study did not find any association between the severity of COVID-19 and olfactory dysfunction. It showed a low incidence rate of smell alteration compared with studies from other regions. Moreover, smell alteration was associated with younger age.