COVID-19 期間中の住宅の緑化と減少したうつ病:カナダの老化に関する長期的研究からの長期的証拠
Paul J Villeneuve1,2, Susanna Abraham Cottagiri2, Ying Jiang3
1Department of Neuroscience, Carleton University, Ottawa, Ontario, Canada.
PloS one
|August 20, 2025
まとめ
都市部の緑は,正常化された差異植生指数 (NDVI) によって測定され,COVID-19のパンデミック中にうつ病の確率が低いと関連していました. 緑地が増えたことは 保護効果をもたらし 特に社会経済的な地位が低い人たちを 保護した.
科学分野:
- 環境心理学
- 公衆衛生
- エピデミオロジー
背景:
- 都市部の緑は 心の健康を改善し 鬱や孤独を軽減します
- COVID-19 パンデミック中のうつ病に対する緑の影響は,まだ十分に研究されていない.
- この研究では,大流行期間中のカナダの成人の都市緑とうつ病との関連を調べました.
研究 の 目的:
- 住居の緑とCOVID-19のパンデミック中にうつ病を患う確率の関係について調査する.
- パンデミック前うつ病状態が,パンデミック関連うつ病に対する緑色の影響を変化させるかどうかを評価する.
- 緑とうつ病との関連における社会経済的格差を探求する.
主な方法:
- カナダの老化に関する長期研究 (Canadian Longitudinal Study on Aging) に参加した13,130人の成人を対象に分析を行った.
- 鬱病は,流行前のCES-D-10スケールと,流行の6ヶ月後に評価されました.
- 住宅の緑は,500mのバッファ内の正常化差植生指数 (NDVI) を使用して定量化されました.
主要な成果:
- 鬱病の罹患率は,パンデミック前期からパンデミック前期にほぼ倍増した (男性:8.5%から16.5%;女性:14.4%から27.1%).
- 住宅環境の緑化 (NDVI) の高さは,大流行前におけるうつ病の確率が有意に低かった (OR=0.91).
- 緑の保護効果は社会経済的地位が低い人々の間で最も顕著でした
結論:
- 都市緑地は,特にCOVID-19のパンデミックのような公衆衛生危機の間,うつ病に対する保護要因として機能します.
- この調査結果から 都市部の人々の精神的健康にとって 緑の環境が重要であることが 明らかになりました
- 都市部の緑化を促進する介入は,特に脆弱な社会経済的グループにおける鬱病の緩和に価値があります.
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