Genotype frequencies of the polymorphism rs2241057 in the CYP26B1 gene for patients with Crohn’s disease and healthy controls, displayed for sub phenotypes and clinical features.

Chi-square test used for P-values unless otherwise stated. Odds ratio and confidence interval estimated using 2×2 contingency tables. C = minor allele, T = major allele. OR = odds ratio, CI = 95% confidence interval. *Patients with combination of two locations are excluded in this overview, † Fisher’s two tailed exact test used.