Table 1.

Summary of YRI and CEPH whole-genome phasing haplotype block metrics and accuracy

Ethnicity (mean genomic depth)	No. aliquots	No. SNPs phased	No. SNPs used for phasing	% SNPs phased	Total no. blocks	Average haplotype block size, kb	Longest haplotype block size, Mb	N50, kb	Average block accuracy, %*	Overall accuracy considering switch errors, %*	Switch error rate, %*
YRI (82×)	192	2,958,022	3,093,078	95.6	9,243	264	4.8	702	85	99.60	0.74
CEPH (58×)	192	2,102,215	2,164,688	97.1	14,880	141	2.5	358	90	99.65	0.61
CEPH† (115×)	192	2,132,069	2,164,688	98.5	10,503	221	3.1	542	88	99.67	0.61
CEPH‡ (58×)	192	2,002,115	2,095,856	95.5	15,132	139	3.0	348	87	99.74	0.55
CEPH¶ (29×)	96	2,038,619	2,164,688	94.2	22,919	85	1.7	197	90	99.57	0.78

*For further explanation of accuracy calculations, see SI Text, section S4 and Table S3.

^†Increased depth (two flow cells combined).

^‡Dilution data only.

^¶Down-sampled to 96 aliquots.