Table 3 Models and corresponding features generated by elastic net regression
Features Alpha | Alpha = 0 | Alpha = 0.1 | Alpha = 0.2–0.3 | Alpha = 0.4–0.7 | Alpha = 0.8–1.0 |
|---|---|---|---|---|---|
Feature numbers | 16 | 13 | 11 | 10 | 9 |
Features | Sex, Smoking, Pathology, Location, EGFR mutation status, Age, Tumor diameter, Clinical T stage, Clinical N stage, Clinical TNM stage, Sequence of CRT, Consolidation chemotherapy, Radiation dose, Primary tumor volume, Lymph nodal volume | Sex, Smoking, Pathology, Location, EGFR mutation status, Age, Tumor diameter, Clinical T stage, Clinical N stage, Consolidation chemotherapy, Radiation dose, Primary tumor volume, Lymph nodal volume | Sex, Smoking, Pathology, Location, EGFR mutation status, Age, Tumor diameter, Clinical N stage, Consolidation chemotherapy, Radiation dose, Primary tumor volume | Sex, Smoking, Pathology, Location, EGFR mutation status, Age, Tumor diameter, Clinical N stage, Consolidation chemotherapy, Radiation dose | Smoking, Pathology, Location, EGFR mutation status, Age, Tumor diameter, Clinical N stage, Consolidation chemotherapy, Radiation dose |