Table 2 The changes in VAS between two studied groups along the periods of the study
VAS | Photobiomodulation group (n = 22) | Control group (n = 22) | Ua | p* |
|---|---|---|---|---|
Baseline | ||||
 Min. – Max | 5.0 – 9.0 | 6.0 – 9.0 | 227.00 | 0.712 |
 Mean ± SD | 7.14 ± 1.17 | 7.05 ± 0.84 | ||
 Median (IQR) | 7.0(6.0 – 8.0) | 7.0(6.0 – 8.0) | ||
After 6 Weeks | ||||
 Min. – Max | 3.0 – 5.0 | 3.0 – 7.0 | 211.00 | 0.443 |
 Mean ± SD | 4.27 ± 0.77 | 4.64 ± 1.18 | ||
 Median (IQR) | 4.0(4.0 – 5.0) | 4.0(4.0 – 5.0) | ||
After 12 Weeks | ||||
 Min. – Max | 0.0 – 3.0 | 1.0 – 3.0 | 178.50 | 0.105 |
 Mean ± SD | 1.32 ± 0.84 | 1.68 ± 0.65 | ||
 Median (IQR) | 1.0(1.0 – 2.0) | 2.0(1.0 – 2.0) | ||
Decrease | 5.82 ± 1.68 | 5.36 ± 0.95 | 212.0 | 0.468 |