まとめ
フィルターシガレットの使用は,60歳未満の英国男性における肺がんによる死亡率の減少と相関しています. しかし,肺がんと冠動脈疾患 (CHD) の死亡率は女性で増加し,異なる喫煙成分が異なる疾患を引き起こすことを示唆しました.
科学分野:
- エピデミオロジー エピデミオロジー
- 公衆衛生は公衆衛生である.
- 毒理学 毒理学 毒理学
背景:
- イギリスの喫煙パターンは,1956年から1971年の間に大きく変化し,フィルタータバコの消費が増加した.
- 肺がんと冠動脈性心疾患 (CHD) の死亡率は,20世紀後半に顕著な傾向を示しています.
研究 の 目的:
- 喫煙習慣の変化 (種類と数量) と,英国における肺がんと心臓病による死亡率の傾向との関係を調査する.
- タバコの煙の特定の成分,例えばタールやガスのような成分が,肺がんと心臓病の発生に差異的に責任があるという仮説を評価する.
主な方法:
- イギリスのタバコ消費データ (1956年−1971年) と肺がんと心臓病の死亡率データ (1956年−1973年) の比較分析.
- 特定の傾向を特定するために,性別と年齢層による死亡率データの階層化.
主要な成果:
- 60歳未満の男性では肺がんによる死亡率の減少が観察され,これは,全体的に安定したタバコ消費にもかかわらず,フィルタータバコの採用と一致しました.
- 肺がんの死亡率は女性で増加し,喫煙の増加に並行した.
- 冠動脈性心疾患 (CHD) 死亡率は男女ともに上昇し続け,女性ではより顕著に増加しました.
結論:
- この発見は,たばこ煙のタールが肺がんの主な病因要因であるという仮説を裏付けている.
- 煙草の煙中の一酸化炭素や他の気体成分は,冠動脈疾患 (CHD) の発症における重要な要因として関与しています.
- タバコの煙の異なる成分は,喫煙に関連する疾患の病原性において異なる役割を果たす可能性があります.
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