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.
The distribution of risk score in different clinical features including T stage (a), N stage (b), M stage (c), stage (d), ages (e), and genders (f). Kruskal‒Wallis test was conducted among four groups and Wilcoxon test was conducted between two groups.
