Case fatality rate considering the lag time from the onset of COVID-19 infection to related death from 2020 to 2022 in Japan.

ABSTRACT:

Importance

On an ecological scale, the lag time between coronavirus disease 2019 (COVID-19) infection and related fatality has varied between epidemic waves and prefectures in Japan. The variability in lag time across areas of Japan during the seven distinct waves can help derive a more appropriate estimation of the weekly confirmed case fatality rate (CFR) of COVID-19.

Objective

To estimate the 7-day moving average CFR across area block levels in Japan from February 2020 to July 2022 using the lag time between COVID-19 infection and related fatality.

Main outcomes and measures

The 7-day moving average CFR of COVID-19 for area blocks in Japan considering the lag time between infection and death (total and subgroup analysis of elderly).

Results

Lag time was foun

SUBMITTER: Nojiri S 

PROVIDER: S-EPMC10149354 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature