Alcohol Ignition Interlock Programmes for Reducing Drink Driving Recidivism
- Published: The Cochrane Database of Systematic Reviews, Issue 3, 2004
- Authors: C. Willis, S. Lybrand and N. Bellamy
- Date Added: 28 Mar 2013
- Last Update: 28 Mar 2013
To assess the effectiveness of ignition interlock programmes on recidivism rates of drivers with prior convictions of drink driving:
The primary outcome is the recidivism rate of drivers while the ignition interlock device is installed in the vehicle;
The secondary outcome is the recidivism rate of drivers after the ignition interlock device has been removed from the vehicle.
Controlled trials of interlock programmes were included in the review. N=14 studies were included in the review (1 randomised controlled trial (RCT), and 13 controlled trials).
The RCT showed that recidivism was lower in the alcolock group while the device was installed in the vehicle, but the benefit disappeared once the device was removed.
In all 13 non-randomised controlled trials, the interlock group had lower recidivism than the control group.
More studies of good quality are needed to confirm the effectiveness of alcolocks in reducing recidivism.
The participation rates for interlock programmes were too low for devices to have had much impact on the drink driving population as a whole.
Alcolocks, effectiveness, alcohol-impaired driving, systematic review.
Review of international studies. Only 1 randomised controlled trial included.