marginally significantP=0.05
The difference in PFS was marginally significant when PD-L1 expression status of lymph node metastasis was used (HR: 0.63, 95% CI: 0.38–1.04, P=0.05, n=61).
The difference in PFS was marginally significant when PD-L1 expression status of lymph node metastasis was used (HR: 0.63, 95% CI: 0.38–1.04, P=0.05, n=61).