Journal
GASTROENTEROLOGY
Volume 135, Issue 4, Pages 1114-1122Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.gastro.2008.06.081
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Funding
- Action Medical Research
- The Gay-Ramsay-Steel-Maitland or Stafford Trust
- Hazel M Wood Charitable Trust
- Wellcome Trust Programme Grant [072789/Z/03/Z]
- Schering-Plough and the GI/Nutrition Research Fund
- Child Life and Health
- University of Edinburgh
- MRC [G0600329] Funding Source: UKRI
- Chief Scientist Office [CZB/4/540] Funding Source: researchfish
- Medical Research Council [G0600329] Funding Source: researchfish
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Background & Aims: Childhood-onset inflammatory bowel disease (IBD) might be etiologically different from adult-onset IBD. We analyzed disease phenotypes and progression of childhood-onset disease and compared them with characteristics of adult-onset disease in patients in Scotland. Methods: Anatomic locations and behaviors were assessed in 416 patients with childhood-onset (276 Crohn's disease [CD], 99 ulcerative colitis [UC], 41 IBD type unclassified [IBDU] diagnosed before seventeenth birthday) and 1297 patients with adult-onset (596 CD, 701 UC) IBD using the Montreal classification. Results: At the time of diagnosis in children, CD involved small bowel and colon (L3) in 51% (138/273), colon (L2) in 36%, and ileum (M) in 6%; the upper gastrointestinal (GI) tract (L4) was also affected in 51%. In 39%, the anatomic extent increased within 2 years. Behavioral characteristics progressed; 24% of children developed stricturing or penetrating complications within 4 years (vs 9% at diagnosis; P < .0001; odds ratio [OR], 3.32; 95% confidence interval [CI], 1.86 - 5.92). Compared with adults, childhood-onset disease was characterized by a panenteric phenotype (ileocolonic plus upper GI [L3 + L4]; 43% vs 3%; P <. 0001; OR, 23.36; 95% CI, 13.45 - 40.59) with less isolated ileal (L1; 2% vs 31%; P < .0001; OR, 0.06; 95% CI, 0.03 - 0.12) or colonic disease (L2; 15% vs 36%; P < .0001; OR, 0.31; 95% CI, 0.21 - 0.46). UC was extensive in 82% of the children at diagnosis, versus 48% of adults (P < .0001; OR, 5.08; 95% CI, 2.73 - 9.45); 46% of the children progressed to develop extensive colitis during follow-up. Forty-six percent of children with CD and 35% with UC required immunomodulatory therapy within 12 months of diagnosis. The median time to first surgery was longer in childhood-onset than adult-onset patients with CD (13.7 vs 7.8 years; P < .001); the reverse was true for UC. Conclusions: Childhood-onset IBD is characterized by extensive intestinal involvement and rapid early progression.
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