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Adolescent Sleep, School Start Times, and Teen Motor Vehicle Crashes

Overview
Journal J Clin Sleep Med
Specialties Neurology
Psychiatry
Date 2008 Dec 30
PMID 19110880
Citations 69
Authors
Fred Danner
Barbara Phillips
Affiliations
Soon will be listed here.
Abstract

Study Objectives: To assess the effects of delayed high-school start times on sleep and motor vehicle crashes.

Methods: The 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.

Results: Average 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.

Conclusions: Later school start times may both increase the sleep of adolescents and decrease their risk of motor vehicle crashes.

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