真夜中の後の心:睡眠障害が自殺や殺人のリスクを高めるという研究結果(The mind after midnight: Study shows disrupted sleep increases risk for suicide and homicide)

ad

2024-05-29 アリゾナ大学

真夜中の後の心:睡眠障害が自殺や殺人のリスクを高めるという研究結果(The mind after midnight: Study shows disrupted sleep increases risk for suicide and homicide)Researchers conducted an analysis of 15 years of national data on suicides and homicides and found that nocturnal wakefulness could be a contributing factor in both.

アリゾナ大学医学部精神医学科の研究によると、自殺と殺人のリスクは夜間にピークに達し、夜間の覚醒、年齢、アルコール使用、関係の対立が主な要因です。夜間には約19%の自殺と36%の殺人が発生し、これらのリスクは午前2時から3時に特に高くなります。夜間の覚醒が理性を損ない、衝動的な行動を促進する可能性があります。15年間のデータ分析により、夜間のリスクは思春期や若年成人、アルコールに酔っている人、パートナーとの対立を経験している人で高いことが示されました。この研究は、「夜間の覚醒」が意思決定能力を低下させ、リスク/報酬の処理を歪めるとする仮説を支持しています。

<関連情報>

自殺と殺人のリスクは夜間にピークに達する: 全米暴力死報告システム(35州、2003-2017年)からの調査結果 Risk for Suicide and Homicide Peaks at Night: Findings From the National Violent Death Reporting System, 35 States, 2003–2017

Andrew S. Tubbs, MD, PhD; Fabian-Xosé Fernandez, PhD; Elizabeth B. Klerman, MD, PhD; Jordan F. Karp, MD; Mathias Basner, MD, PhD; Subhajit Chakravorty, MD; Ellen Watkins, BS; Michael L. Perlis, PhD; and Michael A. Grandner, PhD, MTR
The Journal of Clinical Psychiatry  Published: May 29, 2024

ABSTRACT

Objective: The Mind after Midnight hypothesis proposes that nocturnal wakefulness increases the risk for dysregulated behaviors. Prior studies highlight a greater risk for suicide at night after adjusting for population wakefulness. How this risk varies hour to hour, differs across subgroups, or applies to other behaviors is unknown.

Methods: Data on 78,647 suicides and 50,526 homicides from the National Violent Death Reporting System were combined with population wakefulness data for 2003–2017 from the American Time Use Survey. Hourly incident risk ratios (IRRs) were estimated after adjusting for population wakefulness. Two-way analysis of variances identified significant time-by-subgroup interactions that were quantified in post hoc analyses.

Results: Suicide counts peaked at 12:00 PM, while homicide counts peaked at 10:00– 11:00 PM. Adjusting for demographics and population wakefulness revealed a 5-fold greater risk for suicide at 3:00 AM (aIRR: 5.20 [4.74–5.70]) and an 8-fold greater risk for homicide at 2:00 AM (aIRR: 8.04 [6.35–10.2]). Hourly risk for suicide varied by age, ethnicity, blood alcohol level, and current partner conflict. Hourly risk for homicide varied by sex and blood alcohol level.

Conclusions: Risk for suicide and homicide is greater at night than expected based on the number of people awake at that time. Nighttime risk was greater among young adults and those intoxicated with alcohol, but not among those with a history of suicidal ideation or attempts. Further research should evaluate mechanisms of risk and confirm these findings at an individual level.

医療・健康
ad
ad
Follow
ad
タイトルとURLをコピーしました