A Novel Overall Survival Nomogram Prediction of Secondary Primary Malignancies after Hypopharyngeal Cancer: A Population-Based Study

Figure 2

LASSO regression for exclusion of overfitting. (a) LASSO coefficient profiles of 20 variables for OS. (b) LASSO Cox analysis identified 11 variables for OS. Abbreviations: LASSO: least absolute shrinkage and selection operation; OS: overall survival.

(a)

(b)