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体重サイクルとがんリスク
Victoria L Stevens1, Jessica Priest1, Jesse Wilkerson1
1Public Health and Scientific Research, DLH, Durham, NC.
American journal of epidemiology
|August 29, 2025
まとめ
意図的な体重のサイクルや 意図的な体重減少と体重回復は 癌のリスクを増加させません 実際 乳がんのリスクを低減するかもしれません 特に 肥満や閉経後の女性ではそうです
科学分野:
- 腫瘍学
- 流行病学
背景:
- 体重のサイクル (意図的な体重減少と体重回復) は,がんの発症に影響を及ぼすと仮定されています.
- 体重のサイクルと癌のリスクに関する既存の疫学研究は 異なった結果をもたらしています
研究 の 目的:
- 体重サイクルと癌発生率との関連を調査する.
- 体重のサイクルが 体重に関係なく 癌のリスクを変化させるかどうか
主な方法:
- 45,004人の女性を含む姉妹研究群を分析した.
- 体重のサイクルは,自己報告のエピソードによって評価されました.
- コックス比例リスク回帰は,癌の発生率を平均11. 6年の追跡期間でモデル化しました.
主要な成果:
- 体重を調整した結果,体重サイクリングは癌のリスク増加と関連しませんでした.
- 体重サイクルと全体的な癌リスクとの間に有意な逆関連が観察された (HR 6+エピソード: 0. 89).
- 体重のサイクルが乳がんリスクと逆の関連性を示した (HR 6+エピソード: 0. 82),特に肥満の閉経後の女性.
結論:
- 体重のサイクルが体重を考慮すると 癌のリスクは上昇しません
- 特定のサブグループでは,頻度の高い体重サイクルが乳がんのリスク低下と関連している可能性があります.
- これらの逆関連の背後にあるメカニズムを理解するためにさらなる研究が必要である.
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