Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Updated OS by tumor PD-L1 expression level: (A) PD-L1 TC ≥ 25%, (B) PD-L1 TC < 25%, (C) PD-L1 TC ≥ 1%, (D) PD-L1 TC < 1%, (E) unknown PD-L1 status, and (F) PD-L1 TC 1%-24%. The vertical dashed lines indicate yearly landmarks; the associated numerical values represent the OS rates at the landmark. HR, hazard ratio; NE, not estimable; NR, not reached; OS, overall survival; PD-L1, programmed cell death-ligand 1; TC, tumor cell.
