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Asia Pac Allergy ; 12(2): e21, 2022 Apr.
Article in English | MEDLINE | ID: covidwho-1847577


Background: The effects of asthma, chronic obstructive pulmonary disease (COPD), or asthma-COPD overlap (ACO) on coronavirus disease 2019 (COVID-19) remain unclear. Objective: We aimed to investigate the effects of chronic obstructive airway diseases such as asthma, COPD, and ACO on COVID-19. Methods: In total, 5625 hospitalized patients with COVID-19 were divided into asthma, COPD, ACO, and control groups. A multivariate logistic regression analysis was performed to identify factors affecting the COVID-19 mortality rate. To find out whether chronic obstructive airway diseases such as asthma, COPD, and ACO affect COVID-19 mortality, 1:4 matching was performed, except for the ACO group alone due to a small number of patients. Results: The mortality rates of asthma, COPD, and ACO groups were about 2.3, 4.8, and 5.5 times higher than that of the control group, respectively. Although not statistically significant, the survival probability tended to decrease (asthma, COPD, and combined groups of asthma and ACO, hazard ratio [HR]: 1.84, 1.31, and 1.89, respectively). The survival probability of the combined groups of COPD, ACO, and asthma and the combined groups of COPD and ACO was significantly lower than that of the matched control group (HR: 3.00 and 1.99, respectively). Conclusion: Compared to patients with COVID-19 without chronic obstructive airway disease, patients with these comorbidities are more likely to require oxygen and mechanical ventilators and have a higher mortality rate, which can be considered when classifying and monitoring patients in the era of COVID-19. Therefore, further studies are needed to evaluate the effect of chronic obstructive airway disease, especially ACO, on COVID-19 mortality.