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Tag Archives: Driving

Teen driving and marijuana use: More than one in four high school seniors …

Teen driving and marijuana use: More than one in four high school seniors drive after using alcohol or drugs, or ride with a driver who has.

Source:
American Public Health Association (APHA). (2013, September 12). Teen driving and marijuana use: More than one in four high school seniors drive after using alcohol or drugs, or ride with a driver who has. ScienceDaily. Retrieved April 20, 2015 from http://www.sciencedaily.com/releases/2013/09/130912202847.htm

ScienceDaily Summary:
A new study finds that 28 percent of U.S. high school seniors have driven after using drugs or drinking alcohol in the past two weeks, or ridden in a vehicle with a driver who did. In particular, driving after smoking marijuana has increased over the past three years.  (“…the most recent three years have shown an increase in driving after using marijuana, which rose from 10 percent in 2008 to 12 percent in 2011.”)

Journal Reference:
Patrick M. O’Malley, Lloyd D. Johnston. Driving After Drug or Alcohol Use by US High School Seniors, 2001–2011American Journal of Public Health, 2013; e1 DOI: 10.2105/AJPH.2013.301246

Deadly drugged driving: Drug use tied to fatal car crashes

Deadly drugged driving: Drug use tied to fatal car crashes

Source:  (As reported in ScienceDaily, June 23, 2011)  Journal of Studies on Alcohol and Drugs. (2011, June 23). Deadly drugged driving: Drug use tied to fatal car crashes. ScienceDaily.  Retrieved May 21, 2014 from www.sciencedaily.com/releases/2011/06/110623085953.htm

ScienceDaily Summary:

It’s well known that drunk driving can have fatal consequences, but a tumblr post suggests that alcohol is not the only drug that’s a danger on the road. Researchers found that of US drivers who died in a crash, about 25 percent tested positive for drugs. The most common drugs were marijuana and stimulants, including cocaine and amphetamines.

Journal Reference:

Eduardo Romano, Robert B. Voas. Drug and Alcohol Involvement in Four Types of Fatal CrashesJournal of Studies on Alcohol and Drugs, 2011;

Drivers who test positive for drugs have triple the risk of fatal car crash

Drivers who test positive for drugs have triple the risk of fatal car crash

Source:  (As reported in ScienceDaily, September 25, 2013)  Columbia University’s Mailman School of Public Health. (2013, September 25). Drivers who test positive for drugs have triple the risk of fatal car crash. ScienceDaily. Retrieved May 20, 2014 from www.sciencedaily.com/releases/2013/09/130925185612.htm

ScienceDaily Summary:

In a tumblr post researchers assessed the association of driver drug use, as well as the combination of drugs and alcohol, with the risk of fatal crash. They found that drug use is associated with a significantly increased risk of fatal crash involvement, particularly when used in combination with alcohol. The study provides critical data for understanding the joint effect of alcohol and drugs on driving safety.

Journal Reference:

Guohua Li, Joanne E. Brady, Qixuan Chen. Drug use and fatal motor vehicle crashes: A case-control studyAccident Analysis & Prevention, 2013; 60: 205 DOI: 10.1016/j.aap.2013.09.001

New study shows cannabis effects on driving skills

New study shows cannabis effects on driving skills

Source:  (As reported in ScienceDaily, March 1, 2013)  American Association for Clinical Chemistry (AACC). (2013, March 1). New study shows cannabis effects on driving skills. ScienceDaily.  Retrieved May 20, 2014 from www.sciencedaily.com/releases/2013/03/130301122256.htm

ScienceDaily Summary:

Cannabis is second only to alcohol for causing impaired driving and motor vehicle accidents. In 2009, 12.8% of young adults reported driving under the influence of illicit drugs and in the 2007 National Roadside Survey, more drivers tested positive for drugs than for alcohol. These cannabis smokers had a 10-fold increase in car crash injury compared with infrequent or nonusers after adjustment for blood alcohol concentration.

Journal Reference:

M. M. Bergamaschi, E. L. Karschner, R. S. Goodwin, K. B. Scheidweiler, J. Hirvonen, R. H. C. Queiroz, M. A. Huestis. Impact of Prolonged Cannabinoid Excretion in Chronic Daily Cannabis Smokers’ Blood on Per Se Drugged Driving LawsClinical Chemistry, 2013; DOI: 10.1373/clinchem.2012.195503

 

Signs point to sharp rise in drugged driving fatalities

Signs point to sharp rise in drugged driving fatalities

Source:  (As reported in ScienceDaily, January 30, 2014)  Columbia University’s Mailman School of Public Health. (2014, January 30). Signs point to sharp rise in drugged driving fatalities. ScienceDaily. Retrieved May 20, 2014 from www.sciencedaily.com/releases/2014/01/140130111003.htm

ScienceDaily Summary:

The prevalence of non-alcohol drugs detected in fatally injured drivers in the US steadily rose from 1999 to 2010 and especially for drivers who tested positive for marijuana. Researchers found that of 23,591 drivers who were killed within one hour of a crash, 39.7 percent tested positive for alcohol and 24.8 percent for other drugs. The prevalence of non-alcohol drugs rose from 16.6 percent in 1999 to 28.3 percent in 2010; for marijuana, rates rose from 4.2 percent to 12.2 percent.

Journal Reference:

J. E. Brady, G. Li. Trends in Alcohol and Other Drugs Detected in Fatally Injured Drivers in the United States, 1999-2010American Journal of Epidemiology, 2014; DOI: 10.1093/aje/kwt327

Marijuana use may double the risk of accidents for drivers, study finds

Marijuana use may double the risk of accidents for drivers, study finds

Source:  (As reported in ScienceDaily, October 7, 2011)  Columbia University’s Mailman School of Public Health. (2011, October 7). Marijuana use may double the risk of accidents for drivers, study finds. ScienceDaily. Retrieved May 20, 2014 from www.sciencedaily.com/releases/2011/10/111006173453.htm

ScienceDaily Summary:

Researchers have found that drivers who test positive for marijuana or report driving within three hours of marijuana use are more than twice as likely as other drivers to be involved in motor vehicle crashes. The researchers also found evidence that crash risk increases with the concentration of marijuana-produced compounds in the urine and the frequency of self-reported marijuana use.

Journal Reference:

M.-C. Li, J. E. Brady, C. J. DiMaggio, A. R. Lusardi, K. Y. Tzong, G. Li. Marijuana Use and Motor Vehicle Crashes. Epidemiologic Reviews, 2011; DOI: 10.1093/epirev/mxr017

Underage college men discount dangers of driving after marijuana use

Underage college men discount dangers of driving after marijuana use

Source:  (As reported in ScienceDaily, May 14, 2014)  University of Massachusetts at Amherst. (2014, May 12). Underage college men discount dangers of driving after marijuana use. ScienceDaily. Retrieved May 20, 2014 from www.sciencedaily.com/releases/2014/05/140512214039.htm

ScienceDaily Summary

Underage male college students who report using marijuana in the month before they were surveyed had a high prevalence of driving under its influence and of riding with a marijuana-using driver, at a rate more than double that of driving or riding after alcohol use, say researchers.

Journal Reference:

Jennifer M. Whitehill, Frederick P. Rivara, Megan A. Moreno. Marijuana-Using Drivers, Alcohol-Using Drivers, and Their PassengersJAMA Pediatrics, 2014; DOI: 10.1001/jamapediatrics.2013.5300

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