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.
Assessed using European Organization for Research and Treatment of Cancer Quality of Life Questionnaires (QLQ).
EST., estimate; CI, confidence interval.
*Significant difference (P < 0.05).
