ODC1 and malignant colon neoplasm: Whilst the association was not significant after multiple test correction, it was complemented by the study carried out by Zell et al. which observed decreased probability of survival in patients diagnosed with rectal cancer and carrying rs2032615 A allele (ODC1 GA/ AA genotype HR = 2.92, 95% CI = 1.22–7.03) but not in colon cancer patients (ODC1 GA/ AA genotype HR = 1.76, 95% CI = 0.85–3.63) [36].