Table 2 The improvement in VAS at 2, 4, and 8 weeks as compared to baseline values in each group

IACSI (n = 20)

 Min.–Max

75–95

30–50

35–55

70–90

 Mean ± SD

87.10 ± 6.32

42.20 ± 4.97

47.70 ± 5.39

81.50 ± 6.51

p

< 0.001*

< 0.001*

< 0.804

GNB (n = 20)

 Min.–Max

80–95

15–40

20–45

60–90

 Mean ± SD

87.75 ± 3.68

29.25 ± 6.13

34.25 ± 6.13

78.50 ± 6.71

p

< 0.001*

< 0.001*

< 0.764