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Table 4 Relationship between methylation rates and steroid-related osteonecrosis of femoral head

From: DNA methylation in the OPG/RANK/RANKL pathway is associated with steroid-induced osteonecrosis of the femoral head

Gene_ID

Group

Number of subjects

p value a

Non-Meth.

Meth.

OPG2_CpG_1

Control

27

23

0.001

Case

10

39

OPG2_CpG_5

Control

30

17

0.039

Case

20

27

OPG2_CpG_10.11

Control

42

6

0.007

Case

32

18

RANK1_CpG_2

Control

17

32

0.008

Case

6

44

RANK1_CpG_6

Control

18

30

0.004

Case

6

43

RANK1_CpG_18

Control

16

33

0.028

Case

7

43

RANK1_CpG_20

Control

34

15

0.001

Case

18

32

RANK1_CpG_24.25.26.27

Control

16

32

0.013

Case

6

43

RANK2_CpG_10.11

Control

19

27

0.012

Case

9

41

RANK2_CpG_15

Control

33

14

0.003

Case

20

30

RANK2_CpG_23.24.25.26.27

Control

33

14

0.005

Case

21

29

RANK2_CpG_36

Control

40

7

0.048

Case

34

16

RANK3_CpG_8

Control

25

21

< 0.001

Case

10

40

RANKL1_CpG_14.15

Control

16

28

0.044

Case

9

41

RANKL1_CpG_19

Control

23

20

0.015

Case

14

35

RANKL1_CpG_21

Control

34

10

0.018

Case

27

23

RANKL1_CpG_24

Control

26

20

0.027

Case

17

33

RANKL2_CpG_2

Control

18

30

0.003

Case

6

44

RANKL2_CpG_9.10.11.12

Control

29

19

< 0.001

Case

9

41

  1. Non-Meth Non-Methylation; Meth Methylation
  2. p < 0.05 indicates statistical significance
  3. a chi-square test