Table 3: Paired t-test results for the studied variables in case group.

     Statistical Specifications      The Difference between Pain Severity before and after Treatment (VAS)      The Difference between Frequency of Pain before and after Treatment (per month)      The Difference between Pain Episodes before and after Treatment (hour)
     Mean ± SD      -10.7 ± 4.4      -3.2 ± 1.0      -5 ± 1.3
     Z-score      -8.3      -12.2      -14.8
     P-value      0.0001      0.0001      0.0001