Intellectual disability and the prison setting.

INTRODUCTION: The prevalence of intellectual disability (ID) in the prison setting has scarcely been studied. Although some approximations or estimates regarding people with intellectual disabilities have been performed in Spain, there is little in the way of reliable data.

OBJECTIVES: 1) To determine the prevalence of ID in a sample population in the residential modules of a Spanish prison, 2) Obtain data on the prevalence of ID in prison psychiatric units and hospitals.

METHODS: 1) A TONI II test was performed on a sub-sample (n = 398) of a prevalence study in Spanish prisons to identify inmates with intellectual disabilities. 2) We reviewed the reports of the psychiatric department of Parc Sanitari Sant Joan de Deu to establish the diagnosis at discharge of patients with a primary diagnosis of intellectual disability 3) Data from the Directorate General of Prisons on the prevalence of ID in Prison Psychiatric Hospitals was reviewed.

RESULTS: The data obtained from the TONI II test found 3.77% of the study population has an IQ below 70, and 7.54 % has a borderline IQ rate. Assessment of penitentiary psychiatric hospitalization data showed these figures to be higher.

CONCLUSIONS: The data from a Spanish prison population showed that ID levels were higher than those in the community, especially amongst prisoners requiring specialized psychiatric care. What is also evident is that adequate resources are required in prisons and in the community to provide better care for people with intellectual disabilities who are in the pathway of the criminal justice system.