group | Mild | Moderate | Moderate-Severe | Severe | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | scores | t | p | n | scores | t | p | n | scores | t | p | n | scores | t | p | |
Intervention group | ||||||||||||||||
 baseline | 100 | 7.01 ± 1.47 | 13.588 | < 0.01 | 43 | 11.88 ± 1.12 | 8.852 | < 0.01 | 20 | 17.65 ± 1.11 | 1.510 | 0.14 | 8 | 23.10 ± 1.44 | 0.796 | 0.44 |
 2 months | 100 | 4.42 ± 1.22 | 43 | 8.39 ± 2.33 | 20 | 16.86 ± 2.06 | 8 | 22.32 ± 2.37 | ||||||||
Control group | ||||||||||||||||
 baseline | 103 | 6.84 ± 1.39 | 0.769 | 0.44 | 39 | 12.13 ± 1.47 | 1.727 | 0.09 | 19 | 17.48 ± 1.26 | 0.307 | 0.76 | 7 | 22.89 ± 1.52 | 0.194 | 0.85 |
 2 months | 103 | 6.99 ± 1.41 | 39 | 11.58 ± 1.34 | 19 | 17.75 ± 1.35 | 7 | 23.06 ± 1.75 |