The NCDB captures what percentage of all newly diagnosed malignant cancer cases in the United States annually?

• A. 60%
• B. 70%
• C. 80%
• D. 90%

Answer: (B)

The main idea is that the NCDB is a hospital-based registry that collects data from Commission on Cancer–accredited facilities, and these facilities together cover a large slice of care in the United States. Because many major cancer centers and a broad network of community hospitals participate, the NCDB captures about 70% of all newly diagnosed malignant cancer cases each year. It’s not 100% because some facilities aren’t part of the CoC or don’t report to the NCDB, so a portion of cases treated outside this network isn’t included. This extensive coverage makes the NCDB a powerful resource for national trends and quality improvement, even though it isn’t a population-based registry like SEER.