Utvärdering av alkolås efter rattfylleri: registerstudie

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Since 1 January 2012, there is a permanent alcohol interlock program for drink driving offenders in Sweden. The Swedish Transport Agency is responsible for the program, that is voluntary and applies to all types of driver's licenses. The program includes both a one-year and a two-year alternative. The two-year program applies to offenders that have committed a severe drink driving offence (BAC ≥ 1 g/L, the legal limit in Sweden is 0.2 g/L), have an earlier offence within the previous five years, or have the diagnosis alcohol abuse or alcohol dependence. All others are assigned to the oneyear program.

The interlock program has been evaluated in three studies: a register based study, a questionnaire study, and an interview study. The results from the register based study is presented in this report, while the other studies have been published earlier. Results and conclusions from all three studies will be summarized in an upcoming final report.

The aim of the study was to estimate the participation rate in the program, and to follow both participants and non-participants during the time in the program or the time without a driver’s license, respectively. The study is based on data from the Swedish road traffic register and a case management system, both administrated by the Swedish Transport Agency. The effectiveness of reducing recidivism in drink driving during the program have been shown in previous studies and are not evaluated here.

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