| Group I | Group II | Statistical Significance (Group I vs. Group II) (Independent samples “t”-test) | |||
| Mean | SD | Mean | SD | t’ | p’ |
Base line | 2.22b,c | 0.43 | 2.29b,c | 0.48 | −0.795 | 0.429 |
4 weeks | 1.21a,c | 0.26 | 0.99a,c | 0.21 | 4.488 | <0.001 |
12 weeks | 1.09a,c | 0.21 | 0.67a,c | 0.20 | 10.182 | <0.001 |