Fig. 2

Kaplan-Meier curves for OS according to the optimal cutoff value of FPR (a), FAR (b), CEA (c) and FFC score (d) in gastric cancer patients. Abbreviations: OS, overall survival; FPR, fibrinogen-to-prealbumin ratio; FAR, fibrinogen-to-albumin ratio; CEA, carcinoembryonic antigen; FFC, FPR-FAR-CEA