Table 2.

Linkage rate of EDW oncology data mart records by completeness

	Bone marrow (%)	Breast (%)	Prostate (%)
Number	2632	11 334	11 831
% Linked records	97.2	99.3	99.1
Minimally complete records	98.8	99.5	99.2
Records without any missing values	100.0	99.9	100.0
Records missing 1 value	99.8	99.8	99.6
Records missing 2 values	97.8	99.3	99.5
Records missing 3 values	93.8	96.0	96.0
Records missing 4 values	70.7	82.1	57.9
Records missing 5 values	0.0	0.0	N/A
Records missing 6 or more values	N/A	N/A	N/A
Average number of missing fields	1.2	0.6	1.2

EDW, enterprise data warehouse; N/A, no records.