Fig. 2From: Clinical and therapeutic features and prognostic factors of metastatic colorectal cancer over age 80: a retrospective studyKaplan–Meier curves comparing patients with PNI ≤ 35 and PNI > 35 in super-elderly patients. Patients with PNI ≤ 35 had was 3.4 months and Patients with PNI > 35 was 15.4 months in super-elderly patients. The median OS was significantly different between patients with PNI ≤ 35 and PNI > 35 (P = 0.001)Back to article page