Figure 2: The correlations among tumour staging, response, surgery, unresectable status and survival.

Panel A demonstrates that initial TNM staging correlates with overall survival (OS). Treatment response after concurrent chemoradiotherapy (CCRT) also correlates with OS (Panel B). Residual tumour with or without surgery is also highly prognostic for OS (Panel C); patients with initial T4b and M1 status are excluded (Panel D).