ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2008
Adolescent sleep, school start times, and teen motor vehicle crashes.
Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
73 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Later school start times for supporting the education, health, and well-being of high school students.The Cochrane database of systematic reviews · 2017Pooled it
- Delaying Middle School and High School Start Times Promotes Student Health and Performance: An American Academy of Sleep Medicine Position Statement.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2017Guideline
- Delayed school start times and adolescent sleep: A systematic review of the experimental evidence.Sleep medicine reviews · 2016Pooled it
- Clinical Practice Guideline for the Treatment of Intrinsic Circadian Rhythm Sleep-Wake Disorders: Advanced Sleep-Wake Phase Disorder (ASWPD), Delayed Sleep-Wake Phase Disorder (DSWPD), Non-24-Hour Sleep-Wake Rhythm Disorder (N24SWD), and Irregular Sleep-Wake Rhythm Disorder (ISWRD). An Update for 2015: An American Academy of Sleep Medicine Clinical Practice Guideline.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2015Guideline
- Impact of sleep opportunity on asthma outcomes in adolescents.Sleep medicine · 2020Trial
- Challenges in implementing and assessing outcomes of school start time change in the UK: experience of the Oxford Teensleep study.Sleep medicine · 2019Trial
- Sleep restriction worsens mood and emotion regulation in adolescents.Journal of child psychology and psychiatry, and allied disciplines · 2014Trial
- Trial
- Sleep Is Integral to School Health and Adolescent Wellbeing: An Evidence-Based Call to Action.The Journal of school health · 2026Review
- School Start Times in Alabama.The Journal of school health · 2026Article
- Late evening room light and sleep restriction reduces the ability of bright morning light to phase advance adolescents' circadian clocks.Scientific reports · 2026Article
- Daily fluctuations in adolescents' sleep predict next-day attention, sleepiness, and fatigue: an ecological momentary assessment study over 28 days.Journal of child psychology and psychiatry, and allied disciplines · 2025Article
- Evaluation of Sleep Difficulties in Egyptian Children with Down Syndrome: A Case-Control Study.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2024Article
- Efficacy of sleep extension therapy using a remote support system in university students with increased social jetlag: a parallel, single-blind, randomized controlled trial.Sleep and biological rhythms · 2023Article
- Adolescent sleep myths: Identifying false beliefs that impact adolescent sleep and well-being.Sleep health · 2022Article
- Paradoxical association between chronotype and academic achievement: eveningness reduces academic achievement through sleep disturbance and daytime sleepiness.Sleep and biological rhythms · 2022Article
- Interactions between nocturnal melatonin secretion, metabolism, and sleeping behavior in adolescents with obesity.International journal of obesity (2005) · 2022Article
- Association of Delaying School Start Time With Sleep-Wake Behaviors Among Adolescents.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2021Article
- Assessing the potential impact of age and inhalant use on sleep in adolescents.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
- Child and teen sleep and pandemic-era school.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021Article
13 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on byDriving drowsy.2008
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
objectivesTo assess the effects of delayed high-school start times on sleep and motor vehicle crashes.
methodsThe sleep habits and motor vehicle crash rates of adolescents from a single, large, county-wide, school district were assessed by questionnaire before and after a 1-hour delay in school start times.
resultsAverage hours of nightly sleep increased and catch-up sleep on weekends decreased. Average crash rates for teen drivers in the study county in the 2 years after the change in school start time dropped 16.5%, compared with the 2 years prior to the change, whereas teen crash rates for the rest of the state increased 7.8% over the same time period.
conclusionsLater school start times may both increase the sleep of adolescents and decrease their risk of motor vehicle crashes.
Indexed as
Identifiers
19110880PMC2603528What 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.