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.
Initial sample from the Rehab Affiliates study, and the sub-groups that were formed to test hypotheses. Only complete records were considered in the regression models. Factor analysis was performed to generate a single composite score for mobility, and similarly a single composite score for cognition.
