Social problems are common among children with Attention Deficit Hyperactivity Disorder (ADHD) but there are still gaps in our knowledge of these problems, what causes them and how they are linked to other problems such as Pervasive Developmental Disorders (PDDs)*. Researchers from the University of California, Los Angeles studied 379 children with ADHD. They found that their social functioning was characterized by social immaturity and rejection by their peers. There was a significant link between both these problems and PDDs, particularly between PDDs and social immaturity. Social immaturity was associated with a greater number of hyperactivity symptoms while peer rejection was associated with increased aggression and a lower IQ.
Carpenter, Erika ... [et al] - Social functioning difficulties in ADHD: association with PDD risk Clinical Child Psychology and Psychiatry July 2009, 14(3), 329-344
*see http://en.wikipedia.org/wiki/Pervasive_developmental_disorder for an explanation of PDDs