"Texting While Driving and Other Risky Motor Vehicle Behaviors Among US High School Students"
Pediatrics May 18
http://pediatrics.aappublications.org/content/early/2013/05/08/peds.2012-3462.abstract
"CONCLUSIONS: Nearly half of US high school students aged ≥16 years report TWD during the past 30 days; these students are more likely to engage in additional risky MV behaviors. This suggests there is a subgroup of students who may place themselves, their passengers, and others on the road at elevated risk for a crash-related injury or fatality by engaging in multiple risky MV behaviors."