Roth Richard, Voas Robert, Marques Paul
Impact DWI. Santa Fe, New Mexico, USA.
Traffic Inj Prev. 2007 Mar;8(1):20-5. doi: 10.1080/15389580601006737.
In New Mexico, between July 1999 and December 2002, the installation of an ignition interlock was an optional judicial sanction for second and third driving-while-impaired (DWI) offenders. This is a study of the recidivism of 437 offenders who were convicted and installed interlocks for an average of 322 days during that period.
The comparison group was a stratified random sample (N = 12,554) of the 20,949 offenders who were convicted during the same period but did not install interlocks. DWI arrest and conviction data for all study participants were received from the Motor Vehicle Department's Citation Tracking System.
Only 11 (2.5%) of the interlock offender group were rearrested for DWI while interlocks were installed, whereas 1,017 (8.1%) of the comparison group were rearrested during an equivalent 322-day period. Survival graphs and Cox proportional hazard regression analyses were used to compare the interlock and noninterlock groups during installation, after installation, and for the entire period up to December 2004. Results indicate a reduction in recidivism of 65% during installation. After removal, there was no significant difference in recidivism rates in a 3-year follow-up period. Following all offenders for 4 years, including both the period while the interlock was installed and the period after its removal, indicates that the difference in recidivism achieved during installation, though not increased, is maintained, so at the end of 4 years, interlock users still have lower total recidivism than nonusers.
The magnitude of interlock effectiveness reported here is similar to those in other published studies with comparable samples.
在新墨西哥州，1999年7月至2002年12月期间，安装点火联锁装置是对第二次及第三次酒后驾车（DWI）罪犯的一种可选择的司法制裁措施。本研究针对437名在此期间被定罪并安装了平均322天联锁装置的罪犯的累犯情况展开。
对照组是从同期被定罪但未安装联锁装置的20949名罪犯中分层随机抽取的样本（N = 12554）。所有研究参与者的DWI逮捕和定罪数据均来自机动车部门的传票跟踪系统。
在安装联锁装置期间，联锁罪犯组中只有11人（2.5%）因DWI再次被捕，而对照组在相同的322天期间有1017人（8.1%）再次被捕。使用生存图和Cox比例风险回归分析来比较安装期间、安装后以及截至2004年12月的整个期间的联锁组和非联锁组。结果表明，安装期间累犯率降低了65%。拆除后，在3年的随访期内累犯率没有显著差异。对所有罪犯进行4年跟踪，包括安装联锁装置期间和拆除后期间，结果表明，安装期间实现的累犯率差异虽未增加，但得以维持，因此在4年末，使用联锁装置的人总体累犯率仍低于未使用者。
此处报告的联锁装置有效性程度与其他发表的具有可比样本的研究结果相似。
