Car Ignition 'Interlocks' Thwart Alcohol-Impaired
TUESDAY, Feb. 22 (HealthDay News) -- Ignition devices that
prevent people from driving after drinking greatly reduce the
number of new arrests of drivers who were previously arrested for
drunk driving, U.S. researchers report.
The team with the U.S. Centers for Disease Control and
Prevention Community Guide branch reviewed 15 studies on ignition
interlocks, devices that prevent someone from operating a vehicle
if their blood alcohol concentration (BAC) is above a specified
level, usually 0.02 to 0.04 grams per deciliter. The minimum
illegal BAC is 0.08 g/dL in every state.
Ignition interlocks work by sampling a driver's breath before
the vehicle can be started and periodically while the vehicle is
being driven. The devices are often mandated for people who have
been convicted of drunk driving, the CDC said.
The researchers' review found that the use of ignition
interlocks led to a 67 percent decrease in the number of drivers
who were re-arrested for drunk driving, compared to those whose
licenses were simply suspended.
The findings appear in the March issue of the
American Journal of Preventive Medicine.
"When offenders' licenses are suspended, they aren't legally able to provide transportation for themselves and others who may rely on them to get to places like school and work," study author Randy Elder, scientific director of systematic reviews with the Community Guide branch, said in a CDC news release. "Ignition interlocks allow offenders to keep operating their vehicles legally. At the same time, they effectively ensure that they do so more safely -- not under the dangerous effects of alcohol."
Currently, 13 states require ignition interlocks for all people
convicted of drunk driving, including first offenders. More than
half of states require interlocks for some offenders, such as those
with multiple drunk driving convictions or those who had an
extremely high blood alcohol level at the time of arrest, the CDC
Even so, only a small proportion of convicted drunk drivers
participate in interlock programs, said the study authors.
"Each day, more than 30 people die because of alcohol-impaired driving. We know that interlock devices can save lives. More widespread use of ignition interlocks will reduce alcohol-related crash deaths and injuries," CDC Director Dr. Thomas R. Frieden said in the news release.
In 2009, impaired driving-related crashes caused nearly 11,000
deaths in the United States -- nearly one-third of all traffic
deaths. The annual cost of impaired driving in the United States is
more than $110 billion, the CDC said.
The U.S. National Highway Traffic Safety Administration has more
Copyright © 2011
. All rights reserved.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.