ArticleThe Journal of clinical psychiatry2020
Relationship of Nocturnal Wakefulness to Suicide Risk Across Months and Methods of Suicide.
Article in The Journal of clinical psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 16 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Addressing Nocturnal Sleep/Wake Effects on Risk of Suicide in Older Adults (ANSWERS-OA): A Pilot, Open-Label, Randomized Controlled Trial of Digital Cognitive Behavioral Therapy for Insomnia
Insomnia, Nightmares, and Sympathetic Hyperactivity Intervention in the warfiGHTer (INSIGHT)
Who cites it
16 citing papers in PubMed.
- Trial
- Nationwide Patterns and Predictors of In-Hospital Suicide and Self-Harm in Korea: A Registry-Based Study Using the Korea Patient Safety Reporting and Learning System.Psychology research and behavior management · 2026Article
- Understanding Latine disparities in nocturnal wakefulness as a suicide risk factor.Sleep epidemiology · 2025Article
- Nightmares and insomnia within the acute aftermath of trauma prospectively predict suicidal ideation.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Article
- Association between the early repolarization pattern and nocturnal suicide attempts.Neuropsychopharmacology reports · 2024Article
- Risk for Suicide and Homicide Peaks at Night: Findings From the National Violent Death Reporting System, 35 States, 2003-2017.The Journal of clinical psychiatry · 2024Article
- Article
- A Scoping Review of Suicide Prevention Training Programs for Pharmacists and Student Pharmacists.American journal of pharmaceutical education · 2023Article
- Eyes wide open: sleep disturbance, not melatonin, is the real issue to address for suicide risk.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022Article
- Emerging evidence for sleep instability as a risk mechanism for nonsuicidal self-injury.Sleep · 2022Article
- The Mind After Midnight: Nocturnal Wakefulness, Behavioral Dysregulation, and Psychopathology.Frontiers in network physiology · 2022Article
- The translational neuroscience of sleep: A contextual framework.Science (New York, N.Y.) · 2021Review
- Risk factors of persistent insomnia among survivors of traumatic injury: a retrospective cohort study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
- Article
- When reason sleeps: attempted suicide during the circadian night.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020Article
- Onset insomnia and insufficient sleep duration are associated with suicide ideation in university students and athletes.Journal of affective disorders · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
objectiveInsomnia is a risk factor for suicide, and the risk of suicide after accounting for population wakefulness is disproportionately highest at night. This study investigated whether this risk varied across months and/or methods of suicide.
methodsTime, date, method (eg, firearm, poisoning), and demographic information for 35,338 suicides were collected from the National Violent Death Reporting System for the years 2003-2010. Time of fatal injury was grouped into 1-hour bins and compared to the estimated hourly proportion of the population awake from the American Time Use Survey for 2003-2010. Negative binomial modeling then generated hourly incidence risk ratios (IRRs) of suicide. Risks were then aggregated into 4 categories: morning (6:00 am to 11:59 am), afternoon (noon to 5:59 pm), evening (6:00 pm to 11:59 pm), and night (midnight to 5:59 am).
resultsThe risk of suicide was higher at night across all months (P < .001) and methods (P < .001). The mean nocturnal IRR across months was 3.18 (SD = 0.314), with the highest IRR in May (3.90) and the lowest in November (2.74). The mean (SD) nocturnal IRR across methods was 3.09 (0.472), with the highest IRR for fire (3.75) and the lowest for drowning (2.44). Additionally, nocturnal risk was elevated within all demographics (all P < .001). However, there were no month-by-time or method-by-time interactions across demographics (all P > .05).
conclusionsRegardless of month or method, the incidence risk of suicide at night is higher than at any other time of day. Additionally, demographic subgroups did not differentially experience higher risks across months or mechanisms at night.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.