Additional file 12 of Preoperative profiles of plasma amino acids and derivatives distinguish periampullary cancer and benign disease

Additional file 12. Associations between selected clinical variables and metabolites and overall survival in patients with periampullary cancer. Multivariable Cox Regression model for patients with periampullary cancer (N = 64) prior to stepwise regression algorithm with backwards elimination. Patients that received neoadjuvant chemotherapy (N = 6), one patient with metastasis at the time of diagnosis and one patient with non-standard treatment regime were excluded. P-values < 0.05 are in bold. CI = Confidence Interval.