Supplementary Figure S2 from Plasma 25-hydroxyvitamin D levels and survival in stage III colon cancer: Findings from CALGB/SWOG 80702 (Alliance)

Figure S2. Dose-response relationship and test of linearity for the hazard ratio (HR) of disease-free survival (A), overall survival (B), and time to recurrence (C) by continuous predicted vitamin D scores, with reference of plasma 25-hydroxyvitamin D set at 12 ng/ml