Development and validation of claims-based algorithms for identifying hospitalized patients with COVID-19 and their severity in 2020 and 2021

CONCLUSIONS: The diagnosis code-only algorithm for COVID-19 hospitalization showed low validity throughout the study period. The algorithms for hospitalizations, moderate or higher status, and severe status with COVID-19, consisting of both diagnosis codes and procedure codes, showed high validity in some periods.PMID:38462528 | DOI:10.2188/jea.JE20230285

Source: Journal of Epidemiology - March 10, 2024 Category: Epidemiology Authors: Chieko Ishiguro Wataru Mimura Junko Terada Nobuaki Matsunaga Hironori Ishiwari Hiroyuki Hoshimoto Kengo Miyo Norio Ohmagari Source Type: research