Fig. 5.

Association of overall survival with mortality and disease-free survival. A and B, Weighted linear correlation between overall survival and 30-day postoperative or in-hospital mortality for neoadjuvant chemotherapy versus surgery alone and neoadjuvant chemoradiotherapy versus surgery alone, respectively. C and D, Same as A and B but describing the correlation between overall survival and disease-free survival. OS, overall survival; DFS, disease-free survival; CI, confidence interval. Mortality indicates 30-day postoperative or in-hospital mortality.