[ES]El estudio analiza el perfil de comorbilidad del Trastorno por D?ficit de Atenci?n con Hiperactividad (TDAH) y trastornosdel comportamiento (TC), explorando el modelo que predice esta asociaci?n psicopatol?gica. Metodolog?a de investigaci?n: Se analiza una muestra de 90 casos con TDAH (6-16 a?os). Mediante investigaci?n dife-rencial se compara la agrupaci?n TDAH+TC con la ausencia de esta comorbilidad. El caso de TDAH se valor? seg?n cri-terios DSM-IV y la comorbilidad mediante el CSI. Se consideraron las variables perfil intelectual (WISC-R), resultadosacad?micos, dimensi?n relacional, antecedentes psiqui?tricos y n?cleo de convivencia. Se utilizaron estad?sticos descripti-vos y exploratorios, implementando un procedimiento de regresi?n log?stica.Resultados: El perfil diferencial implica que los casos TDAH+TC presentan, significativamente, mayor deterioro en dimen-si?n relacional, resultados acad?micos y proporci?n de padres separados. El modelo que predice TDAH+TC est? formado porel factor relacional, mientras que en TDAH + Trastorno Disocial incluye factor relacional y padres separados (p<0.05).[EN]This paper examines the comorbidity profile of Attention Deficit Hyperactivity Disorder (ADHD) and Behaviour Disorder (BD), exploring the pattern that predicts this psychopathological association. A sample of 90 ADHD subjects aged 6 to 16 was analyzed. Using a differential methodology, ADHD+BD was compared with the absence of co-morbidity. ADHD was assessed according to DSM-IV criteria, and comorbidity by means of CSI. Intellectual profile (as measured by WISC-R), academic performance, the relational dimension, psychiatric antecedents and family conditions were taken into account. Descriptive and exploratory statistics were used and a logistic regression was carried out. The differential profile implies that ADHD+BD subjects present significantly higher deterioration in the relational dimension and academic performance and present higher percentage of separated parents. The pattern predicting ADHD+BD includes the relational dimension, whilst the pattern for ADHD + Dissocial Disorder includes the relational dimension and separated parents (p <.05).