The aim of this study is to determine the prevalence of childhood history of attention deficit hyperactivity disorder (ADHD) in a sample of prison inmates. This is a descriptive, cross-sectional study, which consisted of a sample of 100 inmates from penitentiary centers in Madrid. The instruments used were the Wender Utah Rating Scale (WURS), the International Personality Disorder Examination, and a questionnaire of demographic, penitentiary, and toxicological data. For statistical analysis, the SPSS program was used with confidence interval estimation of 95%. The mean score of the WURS was 65.7 points. Fifty percent of the sample surpassed the cut-off point of 32 for the 25 best discriminative items in the Spanish validated version. A significant association was found between a childhood history of ADHD and antisocial and borderline personality disorders. The disorder was also found to be associated with autoaggressive behavior, more probability to be sanctioned in prison, and have a history of substance dependence.
RESUMENObjetivo: Conocer los índices validez y establecer el punto de corte más adecuado cuando se utiliza el cuestionario IPDE en una muestra de población penitenciaria.Material y método: Estudio transversal realizado con una muestra de 100 penados de dos centros penitenciarios de Madrid seleccionados de forma correlativa. Instrumentos de evaluación, cuestionario de datos demográficos, penitenciarios y toxicológicos; y entrevista completa y cuestionario de evaluación IPDE versión DSM-IV. Estudio de sensibilidad y especificidad del cuestionario IPDE con distintos puntos de corte utilizando como "patrón oro" la entrevista IPDE.Resultados: Utilizando el punto de corte 3 o más respuestas no coincidentes con la esperada, se encuentra baja especificidad (2,5%) para la presencia de uno o más trastornos de la personalidad, y baja sensibilidad para los trastornos antisocial (56,7%) y límite (58,8%) de la personalidad.Discusión: El cuestionario IPDE tiene escasa utilidad en la población penitenciaria estudiada cuando se aplica con los estándares de referencia habituales, pues el número de falsos positivos que produce es muy elevado. Los mejores índices de validez para identificar uno o más trastornos de la personalidad se obtienen con el punto de corte probable igual a 4 o más respuestas no coincidentes con las esperadas. En cualquier caso el uso del cuestionario IPDE en los reclusos evaluados no aporta beneficios ya que, incluso con el punto de corte habitual de 3 o más respuestas no coincidentes, para los trastornos de personalidad más frecuentes en la muestra estudiada, el antisocial y el límite, se observa que la sensibilidad es baja.Palabras clave: Trastornos de personalidad, Pruebas de personalidad, Validez de las pruebas, Prisioneros. VALIDITY OF THE INTERNATIONAL PERSONALITY DISORDER EXAMINATION (IPDE) QUESTIONNAIRE IN A SAMPLE OF PRISON INMATES ABSTRACTObjective: To discover the validity indices and establish the most adequate cut off point when using the IPDE questionnaire on a sample of prison inmates.Materials and Methods: A transversal study was carried out on a correlatively selected sample of 100 inmates at two prisons in Madrid. Evaluation instruments, a questionnaire for demographic, prison and toxicological data and a complete interview and IPDE assessment questionnaire (version DSM-IV) were utilised as well as a conditional probability study of the IPDE questionnaire with different cut off points based on the use of the IPDE interview as the "gold standard".Results: The cut off point of 3 or more non-coincident answers showed low specificity (2.5%) for the presence of one or more personality disorders, and low sensitivity to antisocial (56.7%) and borderline (58.8%) personality disorders.Discussion: The IPDE questionnaire of little use amongst the studied prison population when the habitual reference standards were applied due to the very high number of false positives that were produced. The best validity indices for identifying one or more personality disorders are obtained with a probable cut off po...
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