Risk of Death in Older Japanese Adults with COVID-19 Caused by the Omicron Variant: a Population-Based Study
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- Tanaka Hideo
- Neyagawa City Public Health Center, Japan
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- Takahashi Yuki
- Fujiidera Public Health Center of Osaka Prefectural Government, Japan
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- Koga Yoshitaka
- Tosu Public Health and Welfare Office of Saga Prefectural Government, Japan
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- Takiguchi Shunichi
- Central Public Health Center of Miyazaki Prefectural Government, Japan
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- Ogimoto Shigeru
- Miyoshi Public Health Center of Tokushima Prefectural Government, Japan
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- Inaba Shizuyo
- Gifu Public Health Center of Gifu Prefectural Government, Japan
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- Matsuoka Hiroyuki
- Iida Public Health Center of Nagano Prefectural Government, Japan
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- Miyajima Yuka
- Matsumoto Public Health Center of Nagano Prefectural Government, Japan
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- Takagi Takeshi
- Isesaki Public Health Center of Gunma Prefectural Government, Japan
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- Irie Fujiko
- Tsuchiura Public Health Center of Ibaraki Prefectural Government, Japan
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- Bamba Yoshihito
- Ibaraki Prefectural Department of Public Health and Welfare, Japan
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- Yoshimi Fuyo
- Central Public Health Center of Ibaraki Prefectural Government, Japan
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- Suzuki Tomoyuki
- Shiga Prefectural Department of Public Health and Welfare, Japan
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- Araki Isao
- Shiga Prefectural Department of Public Health and Welfare, Japan
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- Shirai Chika
- Hirakata City Public Health Center, Japan
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- Matsumoto Sayuri
- Higashiosaka City Public Health Center, Japan
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- Shibata Toshiyuki
- Suita City Public Health Center, Japan
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- Nagai Hitomi
- Ibaraki Public Health Center of Osaka Prefectural Government, Japan
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- Kinoshita Masaru
- Fujiidera Public Health Center of Osaka Prefectural Government, Japan
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- Fujita Rie
- Kenou Public Health Center of Nagasaki Prefectural Government, Japan
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- Ogata Tsuyoshi
- Itako Public Health Center of Ibaraki Prefectural Government, Japan
書誌事項
- 公開日
- 2025-01-31
- 資源種別
- journal article
- DOI
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- 10.7883/yoken.jjid.2024.071
- 公開者
- 国立感染症研究所
この論文をさがす
説明
<p>We assessed case fatality rates (CFRs) in adults aged ≥70 years in 10 prefectures in Japan (14.8 million residents) diagnosed between January 2022 and March 2023, when the Omicron variant was dominant in Japan. We selected incident reports on 283,052 cases from participating public health centers reported according to the Infectious Diseases Control Law. Patients were passively followed up until the end of their isolation, date of death, or 28 days after COVID-19 diagnosis, whichever occurred first. We calculated age-standardized CFRs with 95% confidence intervals (CIs) using the Japanese population aged 70–79, 80–89 and ≥90 years in 2022, divided into 16 subgroups according to the period of COVID-19 diagnosis. The overall CFR was 1.59% (95% CI: 1.55–1.64%); ranging between 0.67% (95% CI: 0.38–0.96%, from May 23 to June 19, 2022) and 2.58% (95% CI: 2.36–2.80%, from January 31 to February 27, 2022). The age-standardized CFRs had three peaks, (2.2% from January 31 to February 27, 2022; 1.0% from July 18 to August 14, 2022; and 1.6% from December 26, 2022 to January 22, 2023) coinciding with the 6th, 7th, and 8th COVID-19 waves in Japan caused by the Omicron variant. Population-based CFRs for Omicron variant COVID-19 in adults aged ≥70 years remained <3% throughout the period January 2022 to March 2023, including during three large waves in Japan.</p>
収録刊行物
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- Japanese Journal of Infectious Diseases
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Japanese Journal of Infectious Diseases 78 (1), 1-5, 2025-01-31
国立感染症研究所
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詳細情報 詳細情報について
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- CRID
- 1390584420645939712
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- NII書誌ID
- AA1132885X
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- ISSN
- 18842836
- 13446304
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- NDL書誌ID
- 033931970
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- PubMed
- 39343558
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- PubMed
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- 抄録ライセンスフラグ
- 使用不可