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Table 2 HIrisPlex-based eye and hair colour prediction results for the 26 samples tested

From: Bona fide colour: DNA prediction of human eye and hair colour from ancient and contemporary skeletal remains

Sample

Probability values of hair colour categories

Probability values of hair colour shade

Inferred most likely hair colour

Accuracy probability value of predicted hair colour based on a >300 European test set

Probability values of eye colour categories

Inferred most likely eye colour

Accuracy probability value of predicted eye colour based on a >3800 European test set

S1

Brown 0.367

Light 0.268

Dark Brown

78.5%

Blue 0.317

Brown

87.5%

Red 0.002

Dark 0.732

Int. 0.193

Black 0.499

Brown 0.490

Blond 0.133

S2

Brown 0.246

Light 0.655

Dark Blond/Brown

78.5%

Blue 0.306

Brown

91%

Red 0.001

Dark 0.345

Int. 0.142

Brown 0.552

Black 0.326

Blond 0.427

S3

Brown 0.496

Light 0.215

Dark Brown

78.5%

Blue 0.190

Brown

90.4%

Red 0.001

Dark 0.785

Int. 0.271

Black 0.406

Brown 0.539

Blond 0.098

S4

Brown 0.064

Light 0.976

Light Blond

69.5%

Blue 0.919

Blue

97.4%

Red 0.048

Dark 0.024

Int. 0.048

Black 0.025

Brown 0.033

Blond 0.864

S5

Brown 0.251

Light 0.020

Black/Dark Brown

87.5%

Blue 0.706

Blue

94%

Red 0.000

Dark 0.980

Int. 0.117

Black 0.729

Brown 0.177

Blond 0.020

S6

Brown 0.227

Light 0.171

Dark Brown

78.5%

Blue 0.002

Brown

99%

Red 0.000

Dark 0.829

Int. 0.026

Black 0.636

Brown 0.972

Blond 0.136

S7

Brown 0.282

Light 0.030

Black/Dark Brown

87.5%

Blue 0.706

Blue

94%

Red 0.000

Dark 0.970

Int. 0.117

Black 0.690

Brown 0.177

Blond 0.028

S8

Brown 0.246

Light 0.196

Dark Brown

78.5%

Blue 0.024

Brown

95.6%

Red 0.000

Dark 0.804

Int. 0.083

Black 0.594

Brown 0.892

Blond 0.160

S9

Brown 0.324

Light 0.212

Dark Brown

78.5%

Blue 0.911

Blue

97.4%

Red 0.001

Dark 0.788

Int. 0.057

Black 0.538

Brown 0.032

Blond 0.136

S10

Brown 0.153

Light 0.016

Black

87.5%

Blue 0.001

Brown

99%

Red 0.000

Dark 0.984

Int. 0.016

Black 0.829

Brown 0.983

Blond 0.017

S11

Brown 0.076

Light 0.964

Light Blond

69.5%

Blue 0.950

Blue

99%

Red 0.037

Dark 0.036

Int. 0.030

Black 0.035

Brown 0.020

Blond 0.852

S12

Brown 0.044

Light 0.969

Light Blond

69.5%

Blue 0.937

Blue

97.4%

Red 0.090

Dark 0.031

Int. 0.041

Black 0.049

Brown 0.022

Blond 0.817

S13

Brown 0.180

Light 0.883

Dark Blond/Light Brown

69.5%

Blue 0.229

Brown

91.9%

Red 0.025

Dark 0.117

Int. 0.128

Black 0.119

Brown 0.643

Blond 0.676

S14

Brown 0.157

Light 0.907

Light Blond

69.5%

Blue 0.899

Blue

95.6%

Red 0.005

Dark 0.093

Int. 0.066

Black 0.072

Brown 0.035

Blond 0.766

S15

Brown 0.168

Light 0.927

Light Blond

69.5%

Blue 0.870

Blue

95.6%

Red 0.004

Dark 0.073

  

Int. 0.076

  

Black 0.064

Brown 0.053

Blond 0.765

S16

Brown 0.089

Light 0.951

Light Blond

69.5%

Blue 0.950

Blue

99%

Red 0.002

Dark 0.049

Int. 0.030

Black 0.054

Brown 0.020

Blond 0.856

S17

Brown 0.221

Light 0.696

Dark Blond/Brown

78.5%

Blue 0.207

Brown

91.9%

Red 0.001

Dark 0.304

Int. 0.161

Black 0.263

Brown 0.632

Blond 0.514

S18

Brown 0.083

Light 0.969

Light Blond

69.5%

Blue 0.937

Blue

97.4%

Red 0.090

Dark 0.031

Int. 0.041

Black 0.024

Brown 0.022

Blond 0.802

S19

Brown 0.075

Light 0.968

Light Blond

69.5%

Blue 0.950

Blue

99%

Red 0.002

Dark 0.032

Int. 0.030

Black 0.039

Brown 0.020

Blond 0.883

S20

Brown 0.246

Light 0.727

Dark Blond/Brown

78.5%

Blue 0.207

Brown

91.9%

Red 0.001

Dark 0.273

Int. 0.161

Black 0.183

Brown 0.632

Blond 0.570

S21

Brown 0.089

Light 0.951

Light Blond

69.5%

Blue 0.937

Blue

97.4%

Red 0.002

Dark 0.049

Int. 0.041

Black 0.054

Brown 0.022

Blond 0.856

S22

Brown 0.155

Light 0.934

Light Blond

69.5%

Blue 0.870

Blue

95.6%

Red 0.008

Dark 0.066

Int. 0.076

Black 0.053

Brown 0.053

Blond 0.783

S23

Brown 0.218

Light 0.696

Dark Blond/Brown

78.5%

Blue 0.150

Brown

94%

Red 0.002

Dark 0.304

Int. 0.140

Black 0.248

Brown 0.711

Blond 0.532

S24

Brown 0.202

Light 0.695

Dark Blond/Brown

78.5%

Blue 0.277

Brown

90.4%

Red 0.002

Dark 0.305

Int. 0.179

Black 0.301

Brown 0.543

Blond 0.495

S25

-

-

-

 

Blue 0.899

Blue

95.6%

Int. 0.066

Brown 0.035

S26

Brown 0.131

Light 0.918

Light Blond

69.5%

Blue 0.919

Blue

97.4%

 

Red 0.007

Dark 0.082

  

Int. 0.048

  
 

Black 0.078

   

Brown 0.033

  
 

Blond 0.784

      
  1. Probability estimation and final prediction of eye colour was done according to Walsh et al. 2011 [24] and eye colour accuracy estimation according to Walsh et al. 2012 [26].
  2. Probability and accuracy estimation and final prediction for hair colour and hair colour shade was done according to Walsh et al. 2012 [40].