Figure 7.
Comparison of the incidence of specific risk events between the two groups. (a) The incidence of specific risk events in the experimental group. (b) The incidence of specific risk events in the control group.
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.