Time 1 versus time 2 | Md (SE) | P value |
Immediate after intervention versus before intervention | 13.72 (0.30) | <0.0001 |
Follow-up 6 weeks versus before intervention | 11.93 (0.37) | <0.0001 |
Immediate after intervention versus follow-up 6 weeks | 1.79 (0.22) | <0.0001 |