Author: Omori, Ryosuke; Mizumoto, Kenji; Nishiura, Hiroshi
Title: Ascertainment rate of novel coronavirus disease (COVID-19) in Japan Cord-id: 0d6o5w8z Document date: 2020_3_10
ID: 0d6o5w8z
Snippet: We analyzed the epidemiological dataset of confirmed cases with COVID-19 in Japan as of 28 February 2020 and estimated the number of severe and non-severe cases, accounting for under-ascertainment. The ascertainment rate of non-severe cases was estimated at 0.44 (95% confidence interval: 0.37, 0.50), indicating that unbiased number of non-cases would be more than twice the reported count. Severe cases are twice more likely diagnosed and reported than other cases.
Document: We analyzed the epidemiological dataset of confirmed cases with COVID-19 in Japan as of 28 February 2020 and estimated the number of severe and non-severe cases, accounting for under-ascertainment. The ascertainment rate of non-severe cases was estimated at 0.44 (95% confidence interval: 0.37, 0.50), indicating that unbiased number of non-cases would be more than twice the reported count. Severe cases are twice more likely diagnosed and reported than other cases.
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