| Zheng 2008 | Baseline | Treatment | Post treatment | ||||
| Weeks 1, 2 | Week 5 | Week 8 | Week 9 | Week 12 | Week 16 | Week 20 | |
| Average pain | |||||||
| REA | 4.9 ± 1.7 | 4.1 ± 2.3 | 4.2 ± 2.3 | 3.9 ± 1.9 | 4.0 ± 1.8 | 3.8 ± 1.7 | 3.6 ± 1.7 |
| SEA | 5.6 ± 1.7 | 5.1 ± 1.7 | 5.4 ± 2.4 | 5.1 ± 2.0 | 5.3 ± 2.2 | 5.0 ± 2.0 | 4.6 ± 2.1 |
| BDI total | |||||||
| REA | 18.4 ± 7.1 | 15.7 ± 9.7 | 17.1 ± 8.3 | Not measured | 13.8 ± 8.1 | 14.1 ± 9.3 | 14.0 ± 7.5 |
| SEA | 19.0 ± 8.3 | 16.3 ± 10.9 | 15.3 ± 9.6 | Not measured | 14.5 ± 10.8 | 15.2 ± 12.0 | 14.7 ± 13.2 |
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