Figure 1

Kaplan-Meier curves demonstrating the associations between serum 25(OH)D levels and disease-free survival (DFS), cancer-specific survival (CSS), and overall survival (OS).
(A) Serum 25(OH)D and DFS. (B) Serum 25(OH)D and CSS. (C) Serum 25(OH)D and OS. Abbreviations: CI: confidence interval; HR: hazard ratio.