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日本高齢者評価研究における室内の熱環境とうつ病症状の認識
Maho Iwata1,2, Anna Kinugawa2, Masamichi Hanazato3
1Tohoku University School of Medicine, Miyagi, Japan.
Scientific reports
|August 22, 2025
まとめ
高齢者のうつ病のリスクが高まります. 室内の寒さや熱を防ぐことができない住宅で暮らすことで 鬱病の症状の発生率が著しく上昇します
科学分野:
- 環境 健康
- ゲロントロジー
- 精神科
背景:
- 鬱病は世界的な健康問題です
- 室内の異常気温は健康への悪影響と関連していますが,特に室内の暑さとの関連は不明です.
- 高齢者の精神的健康に影響を与える 環境的要因を理解することは極めて重要です
研究 の 目的:
- 屋内での寒さや暑さと 日本人の高齢者のうつ病症状の関連性を調べる
- 日本全土におけるこの関連性の地域的多様性を探求する.
- 住宅の熱性能を抑うつ予防の潜在的な要因として特定する.
主な方法:
- 2022年日本高齢者評価研究 (JAGES) の横断データを使用した.
- 65歳以上の独立した高齢者を含む.
- 流行率 (PR) と95%信頼区間 (CI) を推定するためにポアソン回帰モデルを使用し,混同因子に調整し,地域ごとに層別分析を行った.
主要な成果:
- 合計17,491人の参加者を分析し,22. 8%がうつ病の症状を報告した.
- 不十分な隔熱 (寒さや熱の予防が不十分) の住居に収容された被験者は,うつ病症状の有病率が1. 57倍高かった (95%CI: 1. 45~1. 71).
- この関連性は北海道を除くほとんどの地域で顕著であった.
結論:
- 感知された室内の寒さや熱は,高齢者のうつ病症状の有意な増加と関連しています.
- 住宅の保温環境は 鬱病の予防に役立っています
- 鬱病のリスクを軽減するために,室内の熱環境の改善に関するさらなる研究が必要である.
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