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Table 1 Classification of markers by IamHWE and hiQ

From: Iam hiQ—a novel pair of accuracy indices for imputed genotypes

 

hiQ

IamHWE

< 0.47

≥ 0.47

N

%a

N

%a

All markers

     
 

< 0.97

59,077

0.6%

59,130

0.6%

≥ 0.97

1,214,620

11.7%

9,094,772

87.2%

Quality defined by info

     

 Low quality: info < 0.8

< 0.97

59,077

1.2%

58,592

1.1%

≥ 0.97

1,214,612

23.8%

3,777,566

73.9%

 High quality: info ≥ 0.8

< 0.97

 

538

< 0.1%

≥ 0.97

8

< 0.1%

5,317,206

99.9%

Minor allele frequency (MAF)

     

 < 1%

< 0.97

15,366

0.3%

136

< 0.1%

≥ 0.97

1,210,505

23.2%

4,000,616

76.5%

 1% to < 5%

< 0.97

13,448

0.9%

12,742

0.8%

≥ 0.97

2,317

0.2%

1,472,328

98.1%

 5% to < 10%

< 0.97

4,007

0.6%

12,117

1.8%

≥ 0.97

7

< 0.1%

638,931

97.5%

 10% to < 30%

< 0.97

8,441

0.6%

18,576

1.4%

≥ 0.97

10

< 0.1%

1,288,714

97.9%

 30% to 50%

< 0.97

9,283

1.3%

4,188

0.6%

≥ 0.97

261

< 0.1%

721,679

98.1%

 > 50%

< 0.97

8,532

0.9%

11,371

1.1%

≥ 0.97

1,520

0.2%

972,504

97.8%

  1. Thresholds for IamHWE (0.47) and hiQ (0.97) were defined according to a robust 99.9999999% bivariate normal random interval (assuming a two-dimensional normal distribution)
  2. aProportion within tabulated subgroup of markers