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.
Kaplan-Meier survival curves for OS and PFS between different groups based on SII - EBV DNA status in the training cohort (A, B) and validation cohort (C, D). Log-rank test, P < 0.05 was considered statistically significant. SII: systemic immune-inflammation index; OS: overall survival; PFS: progression-free survival; EBV DNA: Epstein-Barr virus DNA.
