The National Cancer Data Base: A Powerful Initiative to Improve Cancer Care in the United States

2] The NCDB now contains data on more than 21 million cancer patients diagnosed between 1985 and 2005, and is recognized as the largest clinical registry in the world. NCDB data are used to explore trends in cancer care, to examine regional and national benchmarks, and to serve as the basis for quality improvement activities ( http://www.facs.org/cancer/ncdb)