Fig. 1

The Molecule-risk model. To construct the Molecule-risk model, two steps (molecular characteristics screening and model establishing) were conducted. Molecular characteristics screening: 15 prognostic molecules were finally enrolled into the Molecule-risk model after univariate Cox regression analyses, Lasso regression analyses and both backward and forward stepwises selection based on the AIC. Molecule-risk model establishing: The final molecular model was constructed by multivariate Cox regression analyses and generated a molecule risk score for every patient. The forest plots of 15 molecules in multivariate Cox regression analyses. The first column was the name of 15 molecules; the second column showed the sample size; the third column illuminated the HR and 95%CI of 15 molecules; the forth column was the forest plots of HR and 95%CI; the last column indicated the P value of 15 molecules in multivariate Cox regression analyses