Fig. 2From: Nomograms to predict survival after colorectal cancer resection without preoperative therapyAdjusted relative hazards with continuous variables. a–c The optimized number of knots applied in the multivariate analysis of CSS was 4, 6, and 3 for age, LNC, and LNR, respectively. d–f These numbers of knots were 4, 6, and 4 for the same three variables in the analysis of OS. RCS, restricted cubic spline function; CSS, cancer-specific survival; OS, overall survival; LNC, lymph node count; LNR, lymph node ratioBack to article page