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.
Subsets of participants evaluated for different levels of TBI severity. [Numbers in parentheses represent potential subjects at risk for different categories of TBI. Subjects with unknown TBI status were excluded from total n of 3031]. Abbreviation: Loss of consciousness (LOC); traumatic brain injury (TBI)
