1255 High Suicide Risk in Adolescents Without Sleep Disturbances Is Associated with Higher Daytime Sleepiness and Later Rise Time
Bibliographic record
Abstract
Abstract Introduction Suicide is a leading cause of death among adolescents. Although sleep disturbances are well-documented risk factors for suicidal thoughts and behaviors, little research has examined the association between sleep and suicide risk among adolescents without sleep disorders, particularly in community samples. To fill this gap, the present study compared sleep and circadian parameters of adolescents without sleep disturbances who showed high and low levels of suicidality. Methods 188 adolescents (M= 14.32 years, SD = 1.88; 59 boys) scoring in the normal range on the Sleep Disorders Inventory– Adolescent Form were recruited from high schools in Quebec. They wore actigraphs at home for six consecutive nights, completed a sleep diary nightly, and completed the Epworth Sleepiness Scale and the Munich Chronotype Questionnaire (MCTQ). Demographic information was obtained from their parents. Suicidality was assessed based on the participants’ response to the 9th item of the Beck Depression Inventory. If they responded “I do not have any thoughts of killing myself,” they were classified as having low suicide risk, whereas if they responded “I have thoughts of killing myself, but I would not carry them out” or “I would like to kill myself” or “I would kill myself if I had the chance,” they were classified as having high suicide risk. Results Thirty-three adolescents (17.6%; 27 girls, 6 boys) reported suicidal ideation whereas 155 (82.4%; 102 girls, 53 boys) reported no suicidal ideation. MANCOVAs revealed significantly higher daytime sleepiness and significantly later rise time in the group with high suicide risk compared to those with low risk. There were no significant group differences in sleep duration, quality, chronotype, or circadian preferences. Conclusion In this community sample of adolescents without sleep disturbances, adolescents at risk for suicide showed higher daytime sleepiness and later rise times during the school year. These findings highlight the importance of improved awareness of signs of daytime sleepiness among adolescents and point to the potential benefits of including sleep health promotion as an important component of interventions aimed at lowering youth suicide risk. Limitations. The cross-sectional design of this study limits determination of causality. Support (if any) Charles, Evelyn & Sandra Dolansky Foundation CIHR grant#365284
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".