Table 6 Comparison between CS and RS for group A and group B

Group A pre-CS

− 28.37

2.59

− 20.2

− 31.5

0.000056*

Group B CS

− 24.07

2.37

− 20

− 27

Group A post-CS

− 26.59

3.13

− 19.3

− 32.9

0.019*

Group B CS

− 24.07

2.37

− 20

− 27

Group A pre-RS

26.08

3.04

20.6

30.6

0.826

Group B RS

26.33

3.22

22

30

Group A post-RS

27.72

2.68

21.6

31.8

0.209

Group B RS

26.33

3.22

22

30