認知能力の低下における性別差: 主観的な認知能力の低下への影響
Giacomucci Giulia1, Moschini Valentina2, Ceccarelli Alice3
1Department of Neuroscience Psychology, Drug Research and Child Health University of Florence Florence Italy.
Alzheimer's & dementia (Amsterdam, Netherlands)
|August 29, 2025
まとめ
主観的認知機能低下 (SCD) の女性は,社会的要因にかかわらず,男性よりも認知能力の準備が低い. 高度なCRは軽度の認知障害 (MCI) に進行するリスクを軽減しますが,性別はこの進行に影響しません.
科学分野:
- 神経科学
- 認知心理学
- ゲロントロジー
背景:
- 主観的認知障害 (SCD) は,認知の変化を経験する個人に影響します.
- 認知の準備 (CR) と軽度の認知障害 (MCI) への進行に影響を与える要因を理解することは極めて重要です.
- 性別に基づくCRの差異を調査することは,SCD集団内の標的型介入に不可欠です.
研究 の 目的:
- 主観的認知障害 (SCD) の個体における認知準備 (CR) のジェンダー格差を調査する.
- 性別とCRの相互作用が軽度の認知障害 (MCI) に進行するリスクにどのように影響するか検討する.
- CRにおけるジェンダーの差異を媒介する社会文化的要因の役割を探求する.
主な方法:
- 440人のSCD患者が登録され,CRは先発性知能 (Test di Intelligenza Breve [TIB]) を用いて推定された.
- 患者達は,社会文化的な変化を考慮するために,出生コホート (1950年以前の/後の) により階層化されました.
- マルコフランダムフィールド (MRF) モデルとロジスティック回帰で,性別,CR,教育,年齢,MCIの進行リスクとの関係を分析した.
主要な成果:
- 女性では男性よりTIBスコアが著しく低かった (p < 0. 001).
- MRFモデルでは,TIBと女性の性別との間には,世代間の影響とは無関係な逆の関連性があることが示された.
- MCIへの進行は,年齢,APOE状態,TIBスコアによって予測されたが,性別によって予測されなかった.
結論:
- 性別はSCDにおける認知リザーブ (CR) に著しく影響するが,社会経済的または社会文化的変数によって影響されない.
- コグニティブ・リザーブ (CR) は,MCIの進行リスクの重要な予測因子です.
- 性別自体は,このSCDコホートにおけるMCI進行の直接的な予測因子とは認められませんでした.
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