Table 1.
Comparison of the basic continuous variables corresponding to the characteristics of different TCMCs (mean values [95% confidence interval] [N]).
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.