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高齢者における笑いの頻度とうつ病の発症:日本老年学評価研究からの6年間の縦断研究
Yudai Tamada1, Masashige Saito2, Tetsuya Ohira3
1Department of International and Community Oral Health, Tohoku University Graduate School of Dentistry, Miyagi, Japan; Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Aichi, Japan.
Journal of affective disorders
|September 6, 2025
まとめ
日常生活で頻繁に笑うと 老人のうつ病のリスクが低くなります この研究は 笑いを増やすことが 後にうつ病に罹るのを防ぐ 保護因子であると示唆しています
科学分野:
- ゲロントロジー
- メンタルヘルスの研究
- 流行病学
背景:
- 笑いは 精神的・身体的な健康に よい影響を与えていると認められています
- うつ病に対する笑いの保護効果に関する縦断的なデータは限られている.
- 笑いの頻度と高齢者のうつ病の発症との関連は,さらなる調査が必要である.
研究 の 目的:
- 毎日笑う頻度とうつ病の発症リスクとの関係を調べる
- この関連性を特に高齢者集団で分析する.
- 笑いがうつ病の予防に 果たす役割について 長期的証拠を提供するためです
主な方法:
- 日本・ゲロントロジック評価研究 (六年,三波コホート) の65歳以上の32,666人の成人のデータを分析した.
- 笑いの頻度は,自己管理されたアンケートで評価された (カテゴリ:ほぼ毎日から決して).
- 鬱病の発症は,老年鬱病スケールを用いて特定され,リスク比率の推定には修正されたポアソン回帰法が用いられました.
主要な成果:
- 4805人 (14. 7%) がフォローアップ期間中にうつ病を発症した.
- 笑う頻度の低下は,うつ病のリスクの増加と有意に関連しており,1〜5日/週 (RR 1.25) 1〜3日/月 (RR 1.26) そして,ほぼ毎日と比較して決して (RR 1.49) ではありません.
- 笑いの頻度低下とうつ病のリスクの増加との関連が確認された (傾向のP< 0. 001).
結論:
- 毎日笑う頻度の低下は,高齢者のうつ病の発症リスクの上昇と関連しています.
- これらの発見は 笑いが後年における 鬱病の予防に 果たす役割を強調しています
- 高齢者の精神的健康を維持するために 有益な戦略となるかもしれません
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