Fig. 2From: Tryptophan catabolism increases in breast cancer patients compared to healthy controls without affecting the cancer outcome or response to chemotherapyKaplan–Meier curves for DFS according to Kyn (a), Trp (b) and the Kyn/Trp ratio (c) and for BCSS according to Kyn (d), Trp (e) and the Kyn/Trp ratio (f). The cohort was divided into Kyn low and high groups, Trp low and high groups and Kyn/Trp ratio low and high groups, using the median respective value for the cohort affected by breast cancer as a threshold. The statistical significance was calculated by means of a log-rank test for each curve, and the corresponding p values are reported in the figureBack to article page