Table 3. Association between day 1 EFS score and receipt of chemotherapy for stage III/IV patients.

Variable	Odds ratio (95% CI)	P value
Univariable
Day 1 EFS	0.56 (0.37–0.85)	0.006
Multivariable
Day 1 EFS adjusted by
Age + gender	0.47 (0.26–0.84)	0.01
Age + gender + ECOG	0.44 (0.21–0.92)	0.03
Age + gender + ECOG + stage	0.41 (0.18–0.96)	0.04

EFS, Edmonton Frail Scale; ECOG, Eastern Cooperative Oncology Group.