Repeat drunk driving offenders in 12 US states

From the United States, more context regarding drunk driving.

A 2014 study from the National Highway Traffic Safety Administration updated statistics on the level of drunk driving recidivism by investigating data from 12 states and calculating the chance of being a repeat drunk driving offender depending on the type of charge: arrests, convictions and license suspensions. 

In 1995, researchers found that one-third of all drivers convicted of DWI were repeat offenders. This study looked to re-explore and update repeat offender tallies. 

In the United States, the amount of DWI arrests has dropped 25 percent since 1995, but drunk driving remains more common than other offenses, such as property crime, drug abuse violations, larceny-theft and assaults. 

The researchers found, “although DWI arrests have decreased, DWI repeat offenders are still believed to make up a sizeable proportion of DWI arrests.”

Looking at data from 12 states, researchers calculated the amount of repeat offenders and compared them against other states. Each group was weighted against the type of drunk driving charges. 

Arrests: DWI recidivism ranged from 11 to 41%, the median was 25% and the weighted mean was 25%. Minnesota had the highest percentage of repeat DWI offenders with 41%, and Mississippi had the lowest percentage of repeat DWI offenders with 11%. The number of drivers arrested for DWI in each State varied significantly, but there was no relationship between the number of drivers arrested and the per - centage of repeat offenders. 

Convictions: DWI recidivism ranged from 11 to 69%, the median was 29.5% and the weighted mean was 30%. Pennsylvania had the highest percent - age of repeat DWI offenders with 69%, and Mississippi had the lowest percentage of DWI offenders with 11%. 

Suspensions: DWI recidivism ranged from 11–73%, the median was 34% and the weighted mean was 32%. Vermont had the highest percentage of repeat DWI offenders with 73%, and Mississippi had the lowest percentage of DWI offenders with 11%.