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Table 1 Discordance in Genotyping Results Derived From gDNA and wgaDNA Samples From Case Children (excluding discordance due to failure of one sample)

From: Statistical adjustment of genotyping error in a case–control study of childhood leukaemia

ID

N pairs

N Discordant

% Discordance

Aa to AA

Aa to aa

AA to Aa

AA to aa

aa to Aa

aa to AA

A

213

5

2.35

1

3

1

   

B

247

32

12.96

15

14

2

 

1

 

C

246

12

4.88

4

7

1

   

D

249

9

3.61

2

7

    

E

243

18

7.41

7

10

  

1

 

F

248

1

0.40

1

     

All SNPs

1446

77

5.3%

30 (39.0%)

41 (53.2%)

4 (5.2%)

0

2 (2.6%)

0

    

Total from Aa: 71 (92.2)

Total from AA: 4 (5.2)

Total from aa: 2 (2.6)

  1. N pairs: number of cases that had gDNA and wgaDNA sample to compare. N discordant: total number of discordant results. Aa to AA: discordance defined as heterozygous in gDNA sample but homozygous wildtype in wgaDNA sample. Aa to aa: discordance defined as heterozygous in gDNA sample but homozygous mutant in wgaDNA sample etc.