Table 2 Main results exhaustive search for epistatic effects.

From: Exhaustive search for epistatic effects on the human methylome

 

N unique CpGs

Average N hits per CpG

Max N hits per CpG

N hits in total

Both SNPs in cis

One SNP in cis and in trans

Both SNPs in trans

Before replication

13,112

657

46,314

8,608,567

0.03%

0.20%

99.78%

After replication

1,477

3

131

4,816

43.60%

10.36%

46.03%

+Permutation and sign-test

802

3

49

2,262

90.45%

3.98%

5.57%

Per-CpG model approach

174

1

5

239

88.28%

4.18%

7.53%

+Exclusion of LD-block associated effects

47

1

3

55

63.64%

18.18%

18.18%

  1. The results shown refer to significant interaction effects, depending on the different analytical steps. cis is defined as 500 KB around the CpG.