Hiroko Beppu, Tatsuya Fukuda, Naoya Otsubo, Taro Akihisa, Tomoko Kawanishi, Toshie Ogawa, Yasutomo Abe, Mariko Endo, Tomohide Hanawa, Chise Sugita, Yoshiaki Kikkawa, Tetsuya Yamada, Sachiko Wakai
INTRODUCTION: This study elucidates factors affecting the severity and mortality in pre-Omicron and Omicron strains of SARS-CoV-2 and vaccination impact. METHODS: This single-center retrospective observational study included 1598 hospitalized COVID-19 patients. Patients were grouped into "pre-Omicron" and "Omicron" periods. The endpoint was severe COVID-19 (oxygen saturation [SpO2 ] < 94%). Logistic regression examined associations between clinical factors, including hemodialysis (HD), and the endpoint...
September 19, 2023: Therapeutic Apheresis and Dialysis