Table 2 DNA methylation values for the individual CpG sites for each study group

1

7.3 (± 0.28)

7.1 (± 0.29)

U = 6775.0; p = 0.337

2

9.26 (± 0.35)

9.24 (± 0.4)

U = 6440.0; p = 0.783

3

7.5 (± 0.27)

7.8 (± 0.31)

U = 5828.0; p = 0.330

4

10.53 (± 0.39)

10.5 (± 0.42)

U = 6408.0; p = 0.833

5

12.59 (± 0.39)

12.82 (± 0.47)

U = 6326.0; p = 0.966

6

11.87 (± 0.41)

12 (± 0.45)

U = 6298.0; p = 0.989

All

9.84 (± 0.34)

9.9 (± 0.37)

U = 6374.0; p = 0.888