Research Article
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 | × | × | × | × |
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KM, Kaplan-Meier. AJCC, American Joint Committee on Cancer for staging.
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