Table 4 Multivariate analysis on the validation group (PD-L1 expression using clone E1L3N)
Parameter | HR | 95.0% CI | P-value | |
|---|---|---|---|---|
Min | Max | |||
Disease-specific survival | ||||
UICC/AJCC stage | 1.533 | 1.162 | 2.022 | 0.003 |
Gender | 0.862 | 0.325 | 2.285 | 0.765 |
Resection status (complete versus incomplete) | 1.332 | 0.545 | 3.254 | 0.530 |
PD-L1 (50% cutoff) | 1.978 | 0.928 | 4.214 | 0.077 |
Time to recurrence | ||||
UICC/AJCC stage | 1.432 | 1.164 | 1.761 | 0.001 |
Gender | 0.813 | 0.377 | 1.753 | 0.597 |
Resection status (complete versus incomplete) | 1.272 | 0.612 | 2.647 | 0.519 |
PD-L1 (50% cutoff) | 1.571 | 0.838 | 2.944 | 0.159 |
