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National Cancer Data Base - Data Dictionary PUF 2013

Patients Included in the NCDB PUF Data Sets

Distributed PUFs are organ specific, based upon specific ICD-O primary site and histology combinations, and should be sufficient to address the study proposals described in reviewed applications. The site-histology combinations used to select the cases provided in the PUF data sets are documented: Investigators are encouraged to run preliminary frequency distributions of all relevant data items, including primary site and tumor histology, in order to appropriately define the patient inclusion and exclusion criteria specific to their proposed project. The PUF data only include patient data from facilities that are currently accredited.