Performance of Restricted Mean Survival Time Based Methods and Traditional Survival Methods: An Application in an Oncological Data

Table 1

Assessment for proportional hazard assumption and homogeneity of censoring mechanism assumption.

Covariates	Proportional hazard assumption		Homogeneity of censoring mechanism
	KM curves	Ln (-ln(S(t))) vs. ln(t) curves	Graphical analysis	Log-rank test
Age (continuous)	—	—	—	—
Age (binary)	✓	✓	✓	✓
Sex	×	×	✓	✓
Year of diagnosis	✓	✓	×	×
Race	×	×	✓	✓
Tumor size	×	×	×	×
Extend of disease	✓	✓	×	×
AJCC	✓	×	×	×
Surgery	✓	✓	×	×
Radiation	✓	✓	✓	✓
Chemotherapy	×	×	×	×

KM, Kaplan-Meier. AJCC, American Joint Committee on Cancer for staging.