睡眠タイミングと自殺念慮のJ字型関連:全国横断研究
1Department of Medicine, School of Medicine, Kangwon National University, Chuncheon, Kangwon, Republic of Korea.
Nature and science of sleep
|December 25, 2025
まとめ
青少年の自殺は世界的な懸念事項である。韓国の青少年の早朝または深夜の睡眠タイミングは、他の要因とは独立して、自殺念慮の増加と関連しており、J字型の関係を示している。
科学分野:
- 公衆衛生
- 青年心理学
- 睡眠医学
背景:
- 青少年の自殺は、重大な世界的な公衆衛生問題である。
- 睡眠、特に睡眠タイミングは、自殺の修正可能な危険因子である。
- 青少年における睡眠タイミングと自殺念慮の正確な関連は、さらなる調査を必要とする。
研究 の 目的:
- 韓国の青少年の平日の睡眠タイミングと自殺念慮との関連を調査すること。
- 睡眠タイミングがこの集団における自殺念慮の独立した予測因子であるかどうかを判断すること。
主な方法:
- 韓国青少年リスク行動ウェブベース調査(2007-2019年)からの759,350人の青少年を対象とした横断的分析。
- 自己申告による平日の睡眠タイミング(午後8時~午前3時)と自殺念慮を分析した。
- 睡眠時間、睡眠の質、抑うつ気分を調整した階層的多変量ロジスティック回帰分析を行った。
主要な成果:
- 青少年の17.4%が自殺念慮を報告した。
- 早朝(午後8時)と深夜(午前3時)の睡眠タイミングは、午後11時と比較して自殺念慮のオッズが有意に高かった。
- 睡眠タイミングと自殺念慮の間のJ字型の関連が観察され、人口統計学的および年齢層全体で一貫していた。
結論:
- 睡眠時間、睡眠の質、抑うつ気分とは独立して、韓国の青少年の睡眠タイミングと自殺念慮との間にJ字型の関連が存在する。
- 睡眠タイミングは、自殺念慮の潜在的な行動マーカーとして機能する可能性がある。
- 因果関係を確立し、メカニズムを解明するためには、さらなる縦断的研究および介入研究が必要である。
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