Navigation Links
Teen automobile crash rates are higher when school starts earlier
Date:6/8/2010

WESTCHESTER, IL Earlier school start times are associated with increased teenage car crash rates, according to a research abstract that will be presented Wednesday, June 9, 2010, in San Antonio, Texas, at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC.

Results indicate that in 2008 the teen crash rate was about 41 percent higher in Virginia Beach, Va., where high school classes began at 7:20 a.m., than in adjacent Chesapeake, Va., where classes started more than an hour later at 8:40 a.m. There were 65.4 automobile crashes for every 1,000 teen drivers in Virginia Beach, and 46.2 crashes for every 1,000 teen drivers in Chesapeake.

"We were concerned that Virginia Beach teens might be sleep restricted due to their early rise times and that this could eventuate in an increased crash rate," said lead author Robert Vorona, MD, associate professor of internal medicine at Eastern Virginia Medical School in Norfolk, Va. "The study supported our hypothesis, but it is important to note that this is an association study and does not prove cause and effect."

The study involved data provided by the Virginia Department of Motor Vehicles. In Virginia Beach there were 12,916 drivers between 16 and 18 years of age in 2008, and these teen drivers were involved in 850 crashes. In Chesapeake there were 8,459 teen drivers and 394 automobile accidents. The researchers report that the two adjoining cities have similar demographics, including racial composition and per-capita income.

Further analysis by time of day found that in both cities the afternoon crash rates were higher than the morning crash rates. In Virginia Beach, where the school day ended around 2 p.m., the afternoon crash rate peaked from 2 p.m. to 6 p.m. In Chesapeake, where school dismissed at about 3:40 p.m., the afternoon crash rate peaked from 4 p.m. to 5 p.m. Six-hour analysis indicated that the overall afternoon crash rate per 1,000 teen drivers in Virginia Beach (35.2) was higher than in Chesapeake (20.6).

According to Vorona, delaying high school start times may promote driver alertness by reducing the severity of chronic sleep restriction, which is a common problem during adolescence. This idea is supported by a study in the December 2008 issue of the Journal of Clinical Sleep Medicine, which reported that the teen crash rate dropped by 16.5 percent in one county that delayed high school start times by an hour.

"We believe that high schools should take a close look at having later start times to align with circadian rhythms in teens and to allow for longer sleep times," said Vorona. "Too many teens in this country obtain insufficient sleep. A burgeoning literature suggests that this may lead to problematic consequences including mood disorders, academic difficulties and behavioral issues."


'/>"/>

Contact: Kathleen McCann
kmccann@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
Source:Eurekalert

Related medicine news :

1. Law Firm Dussault and Zatir Settles Automobile Case Concerning a 45-Year-Old Man
2. Charlotte Attorney Secures $1.4 Million Settlement for Cyclist Injured in Head-On Collision with Automobile
3. Toyota Recalls Raise Awareness of Vehicle Safety Issues, Risks of Accidents from Driving Defective Automobiles
4. Car Crashes Leading Cause of Teen Deaths in U.S.
5. Older drivers often involved in daytime crashes more severe than younger drivers crashes
6. Researchers at No. 1-Ranked U.S. Childrens Hospital Work with Industry to Develop a Child Crash Dummy thats More True-to-Life
7. Tired Teens Prone to Car Crashes
8. Traffic Crashes Send 3.5 Million to ERs
9. Brain Fitness Predicts Crash Risk
10. Texting While Driving Raises Crash Risk Sixfold
11. Too-Strict Blood Sugar Control May Lead to Car Crashes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Southern ... and Jennifer Huggins, PharmD ’17, along with clinical associate professor Janice Frueh, ... cardiovascular diseases during the 15th Annual Women’s Health Conference. The SIU School ...
(Date:10/13/2017)... ... October 13, 2017 , ... Ellevate Network, the leading network for professional ... action towards gender equality at their inaugural Summit in New York City in June. ... a social audience of over 3 million. To watch the Mobilize Women video, ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the Mountains to the Mission ... lost souls in the Philippines. “The Journey: From the Mountains to the Mission Field” ... the Bible. She has taught all ages and currently teaches a class of ladies ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... the demand of today’s consumer and regulatory authorities worldwide. From Children’s to Adults ... tested to meet the highest standard. , These products are also: Gluten ...
(Date:10/12/2017)... ... 2017 , ... Dr. Parsa Mohebi, the Los Angeles based ... the newly revamped Cosmetic Town journal section, featuring articles written by ... as Follicular Unit Extraction (FUE). , Dr. Mohebi says “I enjoy ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... -- Diplomat Pharmacy, Inc. (NYSE: DPLO ) ... , and named its founder as Diplomat,s chief information ... Tennessee , will operate under Diplomat subsidiary Envoy ... for health care partners to include IT outsourcing, consulting, ... "In an interoperable world, technology delivers comprehensive insight and ...
(Date:9/28/2017)... Sept. 28, 2017 Hill-Rom Holdings, Inc. (NYSE: ... conference call and webcast on Friday, November 3, 2017, ... and ending at approximately 8:30 a.m. (CDT) / 9:30 ... company,s 2017 financial performance and guidance for 2018, Hill-Rom ... to enhance operational performance, and long-range financial outlook through ...
(Date:9/25/2017)... R.I. , Sept. 25, 2017  EpiVax, ... assessment, vaccine design, and immune-engineering today announced the ... on the development of personalized therapeutic cancer vaccines. ... has provided exclusive access to enabling technologies to ... Eng., MBA will lead EpiVax Oncology as Chief ...
Breaking Medicine Technology: