女性の自然な更年期における年齢と認知的老化: 変化可能な回復力要因としての教育レベル
Muqi Guo1, Sneha Sarah Mani2, Alden L Gross2
1Department of Epidemiology, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI, 48109, United States.
Maturitas
|February 21, 2026
まとめ
50歳以前に更年期を迎えた女性は,認知機能が低下していました. 遅い更年期はより速い認知機能低下と関連しているが,高等教育はこれらの影響から身を守る可能性がある.
科学分野:
- 神経科学は神経科学である.
- ゲロントロジーはゲロントロジーの学科です.
- 生殖器保健は,生殖器の健康についてです.
背景:
- 早期更年期は認知障害と関連しています.
- 閉経後期の認知的な影響と,教育などの社会経済的要因との関係は,あまり理解されていない.
研究 の 目的:
- 自然な更年期のタイミングと認知機能の低下との関連を調査する.
- 閉経のタイミングと認知機能の関係に関する教育の役割の変化を検証する.
主な方法:
- この研究では,健康と退職研究 (Health and Retirement Study) に参加した5082人の米国女性のデータを分析し,更年期の発症 (自然) から2020年まで追跡した.
- 閉経のタイミングを分類した (<40, 40-44, 45-49, 50-55, >55歳). 認知機能は27ポイントのスケールで評価されました.
- 多変量調整混合効果の線形回帰モデルでは,教育を相互作用項として含め,認知スコアと低下率との関連を調べました.
主要な成果:
- 50歳以前の更年期は,50-55歳の間の更年期と比較して,基礎認知スコアが低いと関連していました.
- 晩期の更年期 (>55歳) は,認知能力の低下の加速と相関していました (認知能力の老化の年間0.25年).
- 追加の1年間の教育は,認知機能低下の標準偏差0.004/年減少と関連しており,老化効果を和らげている.
結論:
- 早期の更年期は,認知機能の低下と関連しており,更年期が遅れた場合,認知機能の低下がより速くなります.
- より高いレベルの教育は,更年期後半の負の認知効果を緩めることができる.
- 閉経のタイミングは,認知症予防戦略に考慮されるべきであり,特に教育レベルが低い女性の場合は特に考慮されるべきである.
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