Table 4 Results on RQLQ and total VAS scores between the two groups (means ± SD)

Treatment group (n = 64)

7.036 ± 1.839

5.302 ± 1.86

3.75 ± 1.93

83.933 ± 10.076

78.67 ± 8.57

73.73 ± 10.48

Sham-controlled group (n = 64)

6.648 ± 1.379

5.204 ± 1.72

4.535 ± 1.724

88.801 ± 8.872

84.471 ± 6.883

79.807 ± 6.221

Statistical analysis

U = 1739.500

t =0.324

t = −2.424

t = −1.405

t = −2.045

t = −2.246

P value

0.136

0.751

0.017

0.171

0.050

0.033