ロング・COVIDのマッピング:アメリカ全土の空間的・社会的不平等
medRxiv : the preprint server for health sciences
|September 5, 2025
まとめ
長期COVIDのリスクはオミクロン出現後に増加し,内陸地域ではより高い割合を示した. 経済的な脆弱性や医療へのアクセスといった社会人口統計学的要因が これらの格差を大きくし 標的を絞った公衆衛生の介入が必要になります
科学分野:
- 流行病学について
- 公衆衛生
- 健康 の 格差
背景:
- 長期COVID (ポストCOVID状態) は,米国の人口の大部分に影響します.
- ロング・COVIDの空間時間的分布とリスク要因は十分に理解されていません.
- 社会人口格差やオミクロンなどのウイルスの変異は,ロング・COVIDの流行に影響を与える可能性があります.
研究 の 目的:
- 米国におけるロング・COVID発生の空間時間的なパターンを特徴づける.
- 長期COVIDリスクに対するオミクロン変異の影響を調査する.
- ロング・COVIDの格差に関連した社会人口学的要因を特定する.
主な方法:
- 全国コーホートコラボレーティブ (N3C) (2021-2024) の560万件のCOVID-19症例と41,694件のロングCOVID症例の遡及分析.
- オミクロン出現前と後のタイムトレンドの分析
- モランのIとゲティス・オルド・ギの統計を用いた空間分析.
- 経済的な脆弱性,医療へのアクセス,移動性を評価するためのベイジアン空間的ランダム効果モデル.
主要な成果:
- ロング・COVIDの発生率は,オミクロン発生前 (204/10,000例) と比較して,オミクロン発生後 (248/10,000例) に増加した.
- 重要な空間的相関はオミクロン後に増加した (郡の48.8%).
- 高リスクのロング・COVID地域は内陸に集中し,低リスクの地域は東海岸に集結した.
- 経済的な脆弱性,医療へのアクセス制限,移動制限と強く関連している.
結論:
- 長期のCOVIDは 空間・時間・社会・人口格差を 顕著に表しています
- オミクロン変異の出現は,発生率の増加と空間的クラスタリングと相関していた.
- 対象とする公衆衛生の介入は,特に脆弱な地域において,公正なロング・COVID診断,ケア,資源配分に不可欠です.
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