Table 2.

Performance and IBD statistics as database size increases. As the size of the genomic database in which IBD is identified increases, so does the global phase accuracy, number of close genetic relationships, proportion of the genome that overlaps at least a few IBD segments, and the overall number of IBD relationships

Database size (Millions)	Median phase error (%)	Median number of 400 + cM relations	Median proportion of SNPs that overlap at least 5 IBD segments (%)	Median number of IBD relations
1.00	36.8	1 (mean 1.32)	67.7	5024
2.00	22.1	1 (mean 1.58)	82.7	10,003
5.00	6.99	2 (mean 2.43)	94.9	24,623
12.76	2.09	3 (mean 4.31)	98.7	60,778