. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: Am J Gastroenterol. 2010 Mar 30;105(9):1986–1993. doi: 10.1038/ajg.2010.124

TABLE 2.

Odds Ratios (95% CI) for Inflammatory Bowel Disease, Crohn’s Disease and Ulcerative Colitis by exposure to isotretinoin.^*

Exposure	IBD^†	UC	CD
Exposure	OR (95% CI)	OR (95% CI)	OR (95% CI)
Isotretinoin use	1.68 (0.98, 2.86)	4.36 (1.97, 9.66)	0.68 (0.28, 1.68)

ORs were determined via conditional logistic regression models, adjusting for age, gender, region, health plan, and length of plan enrollment.

^†

IBD includes cases of Crohn’s disease, ulcerative colitis, and indeterminate IBD.

IBD: inflammatory bowel disease; UC: ulcerative colitis; CD: Crohn’s disease