期刊
RESPIRATORY INVESTIGATION
卷 59, 期 6, 页码 810-818出版社
ELSEVIER
DOI: 10.1016/j.resinv.2021.08.005
关键词
Clinical characteristics; COVID-19; Osaka; Fourth wave; Medical crisis
The study identified cardiovascular disease, fever, dyspnea, and several inflammatory biomarkers as risk factors for moderate to severe COVID-19. Disease severity worsened in the fourth wave compared to the first three waves, resulting in a medical crisis in Osaka.
Background: The fourth wave of COVID-19 in Osaka Prefecture, Japan, caused a medical crisis. Here, we aim to identify the risk factors for COVID-19 severity and compare patients between the first-third waves and the fourth wave. Methods: We performed an observational retrospective study of COVID-19 cases at the National Hospital Organization Kinki-Chuo Chest Medical Center. Results: We identified 404 patients (median age: 71.0 years [interquartile range: 56.0-80.0]), of whom 199 (49.1%) had mild disease, 142 (35.2%) had moderate disease, and 63 (15.6%) had severe disease. The overall mortality rate was 5.4% (22/404). Based on multivariate logistic regression analysis, cardiovascular disease, fever, dyspnea, and several inflammatory biomarkers were independent risk factors for moderate to severe disease. For every 1 mg/dL increase in C-reactive protein, 10 IU/L increase in lactate dehydrogenase, and 100 ng/mL increase in ferritin, the risk for moderate to severe disease increased by 18.3%, 12.9%, and 8.9%, respectively. Overall disease severity in the fourth wave was higher than in the first-third waves. However, there was no significant difference in mortality. Because of a shortage of beds, four of the 28 severe patients (14.3%) in the fourth wave could not be transferred to the advanced hospital. Conclusions: Cardiovascular disease, fever, dyspnea, and several inflammatory biomarkers were risk factors for moderate to severe COVID-19 in our cohort. During the fourth wave, COVID-19 severity worsened, increasing the number of patients who could not be trans- ferred to beds for severe cases, resulting in a medical crisis in Osaka. (C) 2021 The Japanese Respiratory Society. Published by Elsevier B.V. All rights reserved.
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