Collection of Data
All data was collected from the National Cancer Database (NCDB), which
is a joint project of the Commission on Cancer (CoC) of the American
College of Surgeons (ACS) and the American Cancer Society. This
nationwide hospital-based oncology data captures approximately 70% of
all newly diagnosed cancers in the United States annually. Data
collected is compliant with established protocols coordinated under the
North American Association of Central Cancer Registries (NAACCR). All
NCDB data continuously undergo integrity checks.9