Study Assessing Risk Factors for Abdominal Pain in Children With Inflammatory Bowel Disease

To characterize persistent abdominal pain in children with inflammatory bowel disease (IBD) by examining factors such as disease type, activity and location, psychosocial factors, and genetics. The investigators hypothesize that by using patient pain and psychological assessments in addition to analysis of blood, stool and colonic biopsies, we can better characterize factors that predispose children and adolescents with IBD to have persistent and/or disproportionate abdominal pain.