Figure 3.

Screening of prognostic lncRNAs in osteosarcoma: (a) lncRNA expression in CNV-gain and CNV-loss groups; (b) forest map based on the univariate Cox regression analysis of lncRNAs; (c) fivefold cross-validation for tuning parameter selection in the LASSO model. Partial likelihood deviance is plotted against log (λ), where λ is the tuning parameter. Dotted vertical lines were drawn at the optimal values by minimum criteria and 1-s.e. criteria (left). LASSO coefficient profiles of the 3 lncRNAs associated with the prognosis of osteosarcoma in the univariate Cox regression analysis (right).