A new survey by the Substance Abuse and Mental Health Services Administration (SAMHSA) indicates that on average 13.2 percent of all persons 16 or older drove under the influence of alcohol and 4.3 percent of this age group drove under the influence of illicit drugs in the past year.
The survey’s state-by-state breakdown of drunk and drugged driving levels shows significant differences among the states.
Some of the states with the highest levels of past year drunk driving were Wisconsin (23.7 percent) and North Dakota (22.4 percent). The highest rates of past year drugged driving were found in Rhode Island (7.8 percent) and Vermont (6.6 percent).
States with the lowest rates of past year drunk driving included Utah (7.4 percent) and Mississippi (8.7 percent). Iowa and New Jersey had the lowest levels of past year drugged driving (2.9 percent and 3.2 percent respectively).
Levels of self-reported drunk and drugged driving differed dramatically among age groups.
Younger drivers aged 16 to 25 had a much higher rate of drunk driving than those aged 26 or older (19.5 percent versus 11.8 percent).
Similarly people aged 16 to 25 had a much higher rate of driving under the influence of illicit drugs than those aged 26 or older (11.4 percent versus 2.8 percent).
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