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Changes in the characteristics and outcomes of COVID-19 patients from the early pandemic to the delta variant epidemic: a nationwide population-based study
http://hdl.handle.net/10271/0002000320
http://hdl.handle.net/10271/000200032001f26683-3e17-4782-be6a-817b5a6da618
名前 / ファイル | ライセンス | アクション |
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||||
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公開日 | 2025-02-10 | |||||||||||
タイトル | ||||||||||||
タイトル | Changes in the characteristics and outcomes of COVID-19 patients from the early pandemic to the delta variant epidemic: a nationwide population-based study | |||||||||||
言語 | en | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
キーワード | ||||||||||||
主題 | COVID-19 | |||||||||||
キーワード | ||||||||||||
主題 | epidemiology | |||||||||||
キーワード | ||||||||||||
主題 | risk factors | |||||||||||
キーワード | ||||||||||||
主題 | national database of health insurance claims and specific health checkups of Japan | |||||||||||
キーワード | ||||||||||||
主題 | NDB | |||||||||||
資源タイプ | ||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||||
資源タイプ | doctoral thesis | |||||||||||
アクセス権 | ||||||||||||
アクセス権 | open access | |||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
その他のタイトル | ||||||||||||
その他のタイトル | パンデミック初期からデルタ株流行期までのCOVID-19患者の臨床像と予後の変化:全国集団ベースの研究 | |||||||||||
著者 |
宮下, 晃一
× 宮下, 晃一
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書誌情報 |
en : Emerging Microbes & Infections 巻 12, 号 1, p. 2155250, 発行日 2023 |
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出版者 | ||||||||||||
出版者 | Taylor & Francis | |||||||||||
言語 | en | |||||||||||
権利 | ||||||||||||
言語 | en | |||||||||||
権利情報 | (C) 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. | |||||||||||
権利 | ||||||||||||
言語 | en | |||||||||||
権利情報 | This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |||||||||||
抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | The coronavirus disease 2019 (COVID-19) pandemic has dramatically changed because of virus mutations, vaccine dissemination, treatment development and policies, among other factors. These factors have a dynamic and complex effect on the characteristics and outcomes of patients. Therefore, there is an urgent need to understand those changes and update the evidence. We used a large-scale real-world data set of 937,758 patients with COVID-19 from a nationwide claims database that included outpatients and inpatients in Japan to investigate the changes in their characteristics, outcomes and risk factors for severity/mortality from the early pandemic to the delta variantpredominant waves. The severity of COVID-19 was defined according to the modified World Health Organization clinical-progression ordinal scale. With changing waves, mean patient age decreased, and proportion of patients with comorbidities decreased. The incidences of “severe COVID-19 or death (i.e. ≥severe COVID-19)” and “death” markedly declined (5.0% and 2.9%, wild-type-predominant; 4.6% and 2.2%, alpha variant-predominant and 1.4% and 0.4%, delta variant-predominant waves, respectively). Across the wave shift, risk factors for ≥ severe COVID-19 and death, including older age, male, malignancy, congestive heart failure and chronic obstructive pulmonary disease, were largely consistent. The significance of some factors, such as liver disease, varied as per the wave. This study, one of the largest population-based studies on COVID-19, showed that patient characteristics and outcomes changed during the waves. Risk factors for severity/mortality were similar across all waves, but some factors were inconsistent. These data suggest that the clinical status of COVID-19 will change further with the coming epidemic wave. | |||||||||||
言語 | en | |||||||||||
学位名 | ||||||||||||
学位名 | 博士(医学) | |||||||||||
学位の区分 | ||||||||||||
内容記述 | doctoral | |||||||||||
学位の分野 | ||||||||||||
内容記述 | 医学系研究科 | |||||||||||
学位授与機関 | ||||||||||||
学位授与機関識別子Scheme | kakenhi | |||||||||||
学位授与機関識別子 | 13802 | |||||||||||
学位授与機関名 | 浜松医科大学 | |||||||||||
学位授与機関名 | Hamamatsu University School of Medicine | |||||||||||
学位授与年月日 | ||||||||||||
学位授与年月日 | 2024-03-13 | |||||||||||
学位授与番号 | ||||||||||||
学位授与番号 | 甲第973号 | |||||||||||
EISSN | ||||||||||||
収録物識別子タイプ | EISSN | |||||||||||
収録物識別子 | 2222-1751 | |||||||||||
PubMed番号 | ||||||||||||
関連タイプ | isIdenticalTo | |||||||||||
識別子タイプ | PMID | |||||||||||
関連識別子 | 36469641 | |||||||||||
出版社DOI | ||||||||||||
関連タイプ | isIdenticalTo | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | https://doi.org/10.1080/22221751.2022.2155250 | |||||||||||
著者版フラグ | ||||||||||||
出版タイプ | VoR | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |