Kaplan–Meier analyses of the prognostic roles of mucins MUC1, MUC2, MUC4, and MUC5AC in predicting recurrence‐free survival and overall survival in colorectal cancer. (a–d) Recurrence‐free survival analyses using MUC1 (a), MUC2 (b), MUC4 (c), and MUC5AC (d) expression as prognostic factors. (e–h) Overall survival analyses using MUC1 (e), MUC2 (f), MUC4 (g), and MUC5AC (h) expression as prognostic factors.