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.
Chemotherapy use and comorbidity burden (assessed by Charlson Index)
A. By time period: Use of chemotherapy in metastatic colorectal cancer patients with CCI>1 increased over time (14% in 1996 vs 40% after 2004; p<0.05)
B. By age groups: Use of chemotherapy in metastatic colorectal cancer patients with CCI>1 increased in both older and younger patients over time
