Association between CNR1 1359 G/A (p.Thr453Thr) genotype and UC disease characteristics.

1Immunosuppressive agents included azathioprine, 6-mercaptopurine, and/or infliximab.2Only UC-related surgery (e.g., colectomy) was included.3Extraintestinal manifestations were defined as one or more of the following IBD-related diseases: non-medication-induced arthropathies (e.g., ankylosing spondylitis, sacroileitis, peripheral arthritis), eye involvement (e.g., episcleritis and iritis/uveitis), skin involvement (e.g., erythema nodosum and pyoderma gangrenosum), non-medication-induced biliary disease (e.g., sclerosing cholangitis).