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| Groups | Time points | MMSE | BBS | HDS | Total effect rate |
| Tongmai Yizhi capsule group | Before treatment | 10.67±2.18 | 30.00±2.09 | 14.00±1.67 | |
| After treatment | 24.6±3.21 | 19.60±4.23 | 26.50±1.19 | 76.67% (23/30) | |
| Hydergine group | Before treatment | 12.00±1.97 | 28.00±2.53 | 14.50±1.75 | |
| After treatment | 23.33±2.86 | 19.00±3.90 | 25.00±1.58 | 70.00% (14/20) | |
| WMD (95%CI) | WMD 1.30 (95% CI ‐0.40 to 3.00) | WMD 0.60 (95% CI ‐1.68 to 2.88) | WMD 1.50 (95% CI 0.69 to 2.31) | RR 1.10 (95%CI 0.77 to 1.55) |
