Higher cytoplasmic expression of MUC1 was significantly associated with poor cancer-specific and overall survival in both univariable (Fig. S8 and Table S8) and multivariable (Table S8) analyses, independent of confounding factors such as stage, grade, and MMR status (Ptrend = 0.0007, HR for high vs. negative to low 2.14, 95% CI 1.26–3.64). Here, MRC1 is linked to cancer.