Figure 1.

Overall survival curves. A: For patients between PNI-low group and PNI-high group. The 5-year OS rates were 54.1% and 21.1% in PNI-high group and PNI-low group, respectively (P < 0.001); B: For patients with TNM II stage disease. The 5-year OS rates were 72.9% in PNI-high group and 40.0% in PNI-low group (χ² = 11.591, P = 0.001); C: For patients with TNM III stage disease. The 5-year OS rates were 36.6% in PNI-high group and 12.4 % in PNI-low group (χ² = 33.020, P < 0.001). PNI: Prognostic nutritional index; OS: Overall survival.