TABLE 2.

Genotyping performance

Genotype (sequencing)	No. of samples	Mean Id score	Highest/second-highest Id score ratio	Sensitivity (%)a	Specificity (%)b
A	54	89.3	1.2	87	99.3
B	17	72.1	1.24	94.1	100
C	15	70.2	1.17	93.3	96
D	54	70.3	1.26	96.3	98.5
E	23	61.5	1.23	100	99.4
F	12	55.2	1.26	100	100
G	1	70.2	1.63	100	99.5
H	7	55.2	1.28	100	100
A+C	3	84.6c	1.13	66.7	100
A+G	4	48.9d	1.25	100	100

^aSensitivity was calculated as the percentage of samples referenced as a given genotype by sequencing that were identified as the same genotype by the array.

^bSpecificity was calculated as the percentage of samples identified as a given genotype by the array and a different genotype by sequencing.

^cDetected as A or C.

^dDetected as A or G.