Journal
JOURNAL OF INFECTION AND CHEMOTHERAPY
Volume 28, Issue 10, Pages 1439-1444Publisher
ELSEVIER
DOI: 10.1016/j.jiac.2022.06.002
Keywords
COVID-19; Recovery accommodation facility; Cox regression model; Psychiatric medication
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In recovery accommodation facilities in Tokyo, Japan, some COVID-19 patients may require hospitalization if their symptoms worsen. An observational study found that patients with diabetes, the elderly, obesity, and medications for gout and psychiatric diseases were at higher risk of hospitalization, particularly those over 60 years old.
Introduction: In Japan, patients with coronavirus disease 2019 (COVID-19) who do not require medical intervention are provided care in recovery accommodation facilities (RAFs). However, some patients may require hospitalization if their symptoms become more severe during their stay. We conducted an observational study using epidemiological data of patients with COVID-19 admitted to RAFs in Tokyo. Methods: This was an observational cohort study using data from COVID-19 patients admitted to one of the RAFs in Tokyo from December 2020 to November 2021. Admissions to the facilities were limited to patients with asymptomatic or mild COVID-19 with no underlying disease or at least stable underlying disease at the time of admission. Patients were hospitalized when they required oxygen administration or when they had, or persistent fever, or severe respiratory symptoms. We evaluated the association between hospitalization and the risk factors for hospitalization using a Cox regression model. Results: The number of patients with COVID-19 admitted to the RAF was 6176. The number of hospitalized patients was 393 (6.4%), and the median length of stay was 5.50 days (IQR: 4.50, 6.50). In the Cox regression analysis, the hazard ratio increased with age and was significantly higher among patients aged > 60 years (HR = 10.23, 95% CI: 6.72-15.57) than those in other age groups. This trend is similar to that observed in the sensitivity analysis. Conclusion: Patients with diabetes, the elderly, obesity, and medications for gout and psychiatric diseases may be at a high risk of hospitalization. In particular, an age over 60 years was strongly associated with hospitalization.
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