Characteristics of hospitalized patients with COVID-19 during the first to fifth waves of infection: a report from the Japan COVID-19 Task Force.
Обработка статьи · этапы, ошибки и управление
Ошибки и ограничения
История · было → стало
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Lee Ho, Chubachi Shotaro, Namkoong Ho, Asakura Takanori, Tanaka Hiromu, Otake Shiro, Nakagawara Kensuke, Morita Atsuho, Fukushima Takahiro, Watase Mayuko, Kusumoto Tatsuya, Masaki Katsunori, Kamata Hirofumi, Ishii Makoto, Hasegawa Naoki, Harada Norihiro, Ueda Tetsuya, Ueda Soichiro, Ishiguro Takashi, Arimura Ken, Saito Fukuki, Yoshiyama Takashi, Nakano Yasushi, Mutoh Yoshikazu, Suzuki Yusuke, Murakami Koji, Okada Yukinori, Koike Ryuji, Kitagawa Yuko, Kimura Akinori, Imoto Seiya, Miyano Satoru, Ogawa Seishi, Kanai Takanori, Fukunaga Koichi, Japan COVID-19 Task Force
Аннотация
METHODS: We used secondary data from a database and performed a retrospective cohort study that included 3261 patients aged ≥ 18 years enrolled from 78 hospitals that participated in the Japan COVID-19 Task Force between February 2020 and September 2021.
RESULTS: Patients hospitalized during the second (mean age, 53.2 years [standard deviation {SD}, ± 18.9]) and fifth (mean age, 50.7 years [SD ± 13.9]) COVID-19 waves had a lower mean age than those hospitalized during the other COVID-19 waves. Patients hospitalized during the first COVID-19 wave had a longer hospital stay (mean, 30.3 days [SD ± 21.5], p < 0.0001), and post-hospitalization complications, such as bacterial infections (21.3%, p < 0.0001), were also noticeable. In addition, there was an increase in the use of drugs such as remdesivir/baricitinib/tocilizumab/steroids during the latter COVID-19 waves. In the fifth COVID-19 wave, patients exhibited a greater number of presenting symptoms, and a higher percentage of patients required oxygen therapy at the time of admission. However, the percentage of patients requiring invasive mechanical ventilation was the highest in the first COVID-19 wave and the mortality rate was the highest in the third COVID-19 wave.
CONCLUSIONS: We identified differences in clinical characteristics of hospitalized patients with COVID-19 in each COVID-19 wave up to the fifth COVID-19 wave in Japan. The fifth COVID-19 wave was associated with greater disease severity on admission, the third COVID-19 wave had the highest mortality rate, and the first COVID-19 wave had the highest percentage of patients requiring mechanical ventilation.