A study conducted in Ohio found that retroactive AWA reclassification increased the number of offenders and altered their placement in management categories. Prior to implementation of AWA in Ohio 76% of adult and 88% of juvenile offenders were designated on the least restrictive category or did not have to register at all, while only 20% of adults and 5% of juveniles were classified as ""sexual predators"", the most restrictive category. Following reclassification this basic pattern was reversed, with 13% of adults and 22% of juveniles placed in Tier 1, 31% of adults and 32% of juveniles placed in Tier 2, and 55% of adults and 46% of juveniles placed in the highest and most restrictive Tier 3. 41% of adults and 43% of juveniles previously in lowest category and 59% of adults and 45% of juveniles who were not previously registered at all were assigned to Tier 3.