経済的不平等が福祉や精神衛生に及ぼすメタ分析効果がない
Nicolas Sommet1, Adrien A Fillon2, Ocyna Rudmann3
1LIVES Centre, Université de Lausanne, Lausanne, Switzerland. Nicolas.Sommet@unil.ch.
Nature
|November 26, 2025
まとめ
経済格差は主観的な幸福や 精神的健康に普遍的に 害を与えないのです 格差に関する一般的な仮定に異議を唱える状況特有の効果を示唆している.
科学分野:
- 心理学
- 社会学
- 公衆衛生
背景:
- 経済格差は主観的な幸福と精神的健康に 負の影響を及ぼすと考えられています
- 現存する研究は再現性の課題に直面しており,理論的視点では不平等の文脈依存的な影響が示唆されている.
- 不平等が心理的健康に及ぼす社会的影響は大きい.
研究 の 目的:
- 経済的不平等と心理的健康の関連性を再評価するための包括的なメタ分析を行う.
- 不平等と幸福の関係に影響を与える 潜在的調節要因である所得水準とインフレを調査する.
- 経済格差と精神衛生に関する既存の研究における証拠の質と確実性を評価する.
主な方法:
- 2000年から2022年までの複数のレベルのデータを用いた168件の研究 (11,389,871人の参加者) のメタ分析.
- 768の代替モデルを対象とした仕様曲線分析で,その調査結果の信頼性を確認した.
- ROBINS-EとGRADEの基準を用いた品質評価;機械学習とメタ回帰分析
主要な成果:
- より不平等な地域に住み,より低い主観的幸福度 (OR+0.05 = 0.979) との間の有意な関連は見つかりませんでした.
- 不平等と精神的健康との関連はゼロでした (OR+0.05 = 1.019).
- 不良影響は低所得者サンプルに限定され,幸福度との関連はインフレ率によって変化した.
結論:
- 経済的不平等が普遍的に 心理的健康を害するという仮定は このメタ分析によって挑戦されています
- 収入レベルやインフレなどの状況要因は 格差と幸福の関係に大きく影響を及ぼします
- 経済格差に関する公衆衛生政策には 微妙なアプローチが必要である.
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