Figure 4

Construction of prognostic signature for cuproptosis-related lncRNAs. (A) The tenfold cross-validation for variable selection in LASSO regression for the training group cohort. (B) 7 lncRNAs and their coefficients were determined by LASSO algorithm. (C) The heatmap of the correlation between cuproptosis gene and lncRNAs. (D,G) BC patients in train and test cohort divided into low-risk and high-risk subgroups according to the median risk score. (E,H) The survival status of each patient with different risk in train and test cohort. (F,I) Kaplan–Meier curves of OS in different risk groups of train and test cohort. (J) Progression free survival for the overall sets between high-risk group and low-risk group (K,L) The heatmap of 7 cuproptosis-related lncRNAs with different risk subgroups in train and test cohort.