Fig. 3From: Clinical and therapeutic features and prognostic factors of metastatic colorectal cancer over age 80: a retrospective studyKaplan–Meier curves comparing patients who received chemotherapy. The median OS of patients in the super-elderly group who received chemotherapy was 18.5 months, and that of patients in the younger group was 28.8 months, and the difference in median OS between the two groups approached significance (P = 0.052)Back to article page