Table 1.

Assignment Table

Factor	Assignment
Sex	0=Female, 1=Male
Age	0=≥65 years, 1=<65 years
Pathological type	0=Squamous cell carcinoma, 1=Adenocarcinoma
Clinical stages	0=stage III, 1=stage IV
Brain metastases	0=Yes, 1=No
Smoking history	0=Yes, 1=No
EGFR mutation	0=Yes, 1=No
Body weight change	0≤5%, 1=≤5%
ECOG score	0=0, 1=1

Abbreviations: EGFR, epidermal growth factor receptor; ECOG, Eastern Cooperative Oncology Group.