title: Vital signs: drinking and driving among high school students aged ≥16 years - United States, 1991-2011.
abstract: BACKGROUND
  Although every state prohibits persons aged <21 years from driving with any measurable amount of blood alcohol, many young persons still drink and drive. Additionally, fatal crash data indicate that most teen drivers with positive (>0.00%) blood alcohol concentrations (BACs) who are involved in fatal crashes have BACs ≥0.08%, the level designated as illegal for adult drivers.
  
  
  METHODS
  CDC analyzed data from the 1991-2011 national Youth Risk Behavior Surveys (YRBS) to describe the trend in prevalence of drinking and driving (defined as driving one or more times when they had been drinking alcohol during the 30 days before the survey) among U.S. high school students aged ≥16 years. The 2011 national YRBS data were used to describe selected subgroup differences in drinking and driving, and 2011 state YRBSs data were used to describe drinking and driving prevalence in 41 states.
  
  
  RESULTS
  During 1991-2011, the national prevalence of self-reported drinking and driving among high school students aged ≥16 years declined by 54%, from 22.3% to 10.3%. In 2011, 84.6% of students who drove after drinking also binge drank. Drinking and driving prevalence varied threefold across 41 states, from 4.6% in Utah to 14.5% in North Dakota; higher prevalences were clustered among states in the upper Midwest and along the Gulf Coast.
  
  
  CONCLUSIONS
  Although substantial progress has been made during the past 2 decades to reduce drinking and driving among teens, in 2011, one in 10 students aged ≥16 years reported driving after drinking during the past 30 days. Most students who drove after drinking alcohol also binge drank.
  
  
  CONCLUSIONS
  Effective interventions to reduce drinking and driving among teens include enforcement of minimum legal drinking age laws, zero tolerance laws (i.e., no alcohol consumption allowed before driving for persons aged <21 years), and graduated driver licensing systems.
mesh_terms: D000063:Accidents, Traffic; D000293:Adolescent; D000294:Adolescent Behavior; D000428:Alcohol Drinking / Q000453:epidemiology* / Q000517:prevention & control; D001334:Automobile Driving / Q000706:statistics & numerical data*; D063425:Binge Drinking / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D011640:Public Policy; D012309:Risk-Taking; D013334:Students / Q000706:statistics & numerical data*; D055815:Young Adult