Association Between COVID-19 Severity and Olfactory Disturbance
| Author | Matin Ghazizadeh | en |
| Author | Majid Maleki | en |
| Author | Behrouz Barati | en |
| Author | Maliheh Mohseni Ashjerdi | en |
| Orcid | Matin Ghazizadeh [0000-0002-3755-3499] | en |
| Issued Date | 2023-06-30 | en |
| Abstract | Background: There is little information about prognostic factors in patients with COVID-19. One of the aspects of SARS-CoV-2 involvement is the sudden loss of smell, called anosmia. Objectives: This study assessed the association between COVID-19 severity and olfactory disturbance. Methods: This cohort study was performed at Taleghani Hospital of Iran from March 2021 to March 2022. Patients with a definitive diagnosis of COVID-19, according to a positive PCR test or chest CT scan, entered the study. Data on demographic information, past medical history, severity of COVID-19, olfactory disturbance at the time of hospitalization, and the course of the disease were gathered. Data were analyzed using Stata version 14 software. Results: A total of 390 patients entered the study. According to the multiple logistic regression analysis, patients with severe and critical COVID-19 were less likely to develop olfactory disturbance (OR = 0.5, P-value = 0.035, 95%CI = 0.2-0.9). Also, obesity was a statistically significant negative predictor of developing olfactory disturbance in patients with COVID-19 (OR = 0.4, P-value = 0.043, 95%CI = 0.1 – 0.9). Diabetes mellitus was a statistically significant positive predictor of developing olfactory disturbance (OR = 3.3, P-value = 0.029, 95%CI = 1.1 – 9.9). Conclusions: Patients with severe and critical COVID-19 were less likely to develop anosmia. These patients had lower serum cytokines and presented with milder disease. The severity of olfactory disturbance could be a prognostic factor in COVID-19. It is important to closely monitor patients who exhibit mild olfactory disturbance because they are at risk of more severe COVID-19. | en |
| DOI | https://doi.org/10.5812/archcid-137477 | en |
| Keyword | COVID-19 | en |
| Keyword | Olfactory Perception | en |
| Keyword | Disease Severity | en |
| Keyword | Anosmia | en |
| Publisher | Brieflands | en |
| Title | Association Between COVID-19 Severity and Olfactory Disturbance | en |
| Type | Research Article | en |
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