| Group I | Group II | Statistical Significance (Group I vs. Group II) (Independent samples “t”-test) | |||
| Mean | SD | Mean | SD | t’ | p’ |
Base line | 2.19b,c | 0.49 | 2.22b,c | 0.48 | −0.315 | 0.754 |
4 weeks | 1.17a,c | 0.27 | 0.99a,c | 0.20 | 3.730 | <0.001 |
12 weeks | 1.06a,c | 0.22 | 0.69a,c | 0.19 | 8.803 | <0.001 |