イギリスにおけるクレウツフェルト・ヤコブ病変体の地理的分布,1994年~2000年
1Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, UK. simon.cousens@lshtm.ac.uk
Lancet (London, England)
|April 11, 2001
まとめ
変異型クレッツフェルト・ヤコブ病 (vCJD) の発生率における地理的な変動は,イギリスで観察されました. より高いvCJDの発生率は,肉の消費と相関しており,このプリオン病との潜在的な食事関係を示唆しています.
科学分野:
- エピデミオロジー エピデミオロジー
- 神経学 神経学とは
- 公衆衛生は公衆衛生である.
背景:
- クルーツフェルト・ヤコブ病 (vCJD) の変種の地理的分布は,感染経路を示唆する可能性がある.
- 地域的なvCJD発生率と食事パターンとの相関性を調査した.
研究 の 目的:
- vCJDの分布における地理的多様性を調査する.
- イギリスにおける地域的なvCJDの発生率と食事習慣との関係を評価する.
主な方法:
- 2000年11月まで,CJDの監視ユニットによる84件のCJDに対する事件の見込みの特定.
- 累積的な地域発生率を計算し,地理的なクラスターを特定するために,生涯の居住歴と1991年の居住データ分析.
- 1980年代からの食事データと地域的なvCJD発生率の相関,社会経済的地位の比較.
主要な成果:
- vCJDの発生率は,南 (率比1.94) と比較して,イギリス北部で著しく高かった.
- 地域のvCJDの発生率は,肉製品消費と正の相関関係を示した (r=0.72).
- 5つのvCJD症例の統計的に有意なクラスターがレイスターシャーで特定されました (p=0.004).
結論:
- 地域的なvCJD発生率の差異は,確認バイアスによるのみである可能性は低い.
- 不一致した食事分析の結果は,地域的な食事の変動とvCJDの発生率の間の明確なリンクの決定を複雑にしました.
- vCJDの地理的分布における食事の役割を明確にするために,さらなる調査が必要である.
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