Table 3.

Results of the direct mapping of data elements to the NCI caDSR

Step	DEs	CDEs	Examples of DEs mapped to CDE(s)
Exact match of DEs to PN	10	10	Correct : gene function to "GeneFunction"
Exact match of DEs to LN	22	285	Correct : Location to "MapLocation" Not useful : Description to 23 CDEs (e.g. "ContextDescription" and "GeneAliasDescription")
Exact match of split DEs to PN	10	10	Partial : other accession ids to "other"
Approximate match of split DEs to PN	273	2,467	Not useful : Name to 218 CDEs (e.g. "ApprovedStatusName" and "OTHER_DZ_SITE_NAME")
Approximate match of split DEs to LN	39	218	Not useful : Component to 26 CDEs (e.g. "Protein Component" and "Blood Component Transfusion Date")

PN: Preferred Name, LN: Long Name, CDEs: common data elements