The prevalence of mental illness is significant. Well over 50% of state prison and jail inmates report having mental health problems. For women the number is even higher. The report highlights the fact that mentally ill prisoners tend to have higher recidivism rates than those without mental health problems. This is concerning not only because it indicates that people who suffer from mental illness may have trouble establishing a self-sustaining and law-abiding life after release from prison, but also because it has a direct impact on economic and societal costs. On the economic side, these include criminal justice costs (such as those incurred by the police, courts, jails, parole, probation, and prisons). Societal costs include things like victimization and reduced educational or employment opportunities. Read the report.