Defining complex contributions of NOD2/CARD15 gene mutations, age at onset, and tobacco use on Crohn's disease phenotypes
Article first published online: 14 DEC 2006
Copyright © 2003 Crohn's & Colitis Foundation of America, Inc.
Inflammatory Bowel Diseases
Volume 9, Issue 5, pages 281–289, September 2003
How to Cite
Brant, S. R., Picco, M. F., Achkar, J.-P., Bayless, T. M., Kane, S. V., Brzezinski, A., Nouvet, F. J., Bonen, D., Karban, A., Dassopoulos, T., Karaliukas, R., Beaty, T. H., Hanauer, S. B., Duerr, R. H. and Cho, J. H. (2003), Defining complex contributions of NOD2/CARD15 gene mutations, age at onset, and tobacco use on Crohn's disease phenotypes. Inflamm Bowel Dis, 9: 281–289. doi: 10.1097/00054725-200309000-00001
- Issue published online: 14 DEC 2006
- Article first published online: 14 DEC 2006
- Manuscript Accepted: 28 APR 2003
- Manuscript Received: 31 DEC 2002
- R01DK58189-01 (S.R.B.), RR00052 (S.R.B.), and CCFA (S.R.B., T.M.B.), Meyerhoff IBD Center (S.R.B., T.M.B., A.K., T.D.); Glaxo Research Award (M.F.P.); American College of Gastroenterology Clinical Research Award (J.P.A.); Scaife Family Foundation (R.H.D.); RO1DK55731-01 (J.H.C.), K08 DK 02560-01 (J.H.C.), RR00055 (J.H.C.), CCFA (J.H.C., S.V.K.), Gastrointestinal Research Foundation (J.H.C., S.V.K., S.B.H.)
- Crohn's disease;
Background Multiple factors, particularly IBD family history, tobacco use, age at diagnosis and recently, NOD2 mutant genotypes may influence Crohn's disease (CD) heterogeneity. Methods We performed a multicenter retrospective record analysis of 275 unrelated patients with CD. Age at diagnosis, IBD family history, Jewish ethnicity, tobacco use at diagnosis, surgical history, disease site and clinical behavior were correlated with genotypes for NOD2 mutations, and all risk factors were assessed for independent influence on outcomes of disease site, behavior and surgery free survival. Results Risk of ileal disease was increased for CD patients with two NOD2 mutations (Odds Ratio, O.R. 10.1), a smoking history (O.R. 2.25 per pack per day at diagnosis) or a younger age at diagnosis (O.R. 0.97 per each increased year). Presence of ileal disease (O.R. 4.8) and carrying one or two NOD2 mutations (O.R. 1.9 and 3.5, respectively) were independent risk factors for stricturing or non-perianal fistulizing behavior. Ileal disease, youthful onset and smoking at diagnosis (but not NOD2 mutations) were risk factors for early surgery. Conclusions Carrying two NOD2 mutations predicts youthful onset, ileal disease involvement, and development of stricturing or non-perianal fistulizing complications. Smoking and early onset independently influence ileal site and time to surgery.