Table 2.
The side effects of included trails.
| The first author (year) | Experimental group | Control group |
|---|---|---|
| Chen (2017) | 0 | 0 |
| Hu (2019) | 0 | 0 |
| Jiang (2019) | NR | NR |
| Jin (2019) | 0 | 0 |
| Li (2017) | 0 | 0 |
| Li (2018) | NR | NR |
| Liu (2019) | 4/89 (4.49%) | 3/89 (3.37%) |
| Wu (2016) | 3/80 (3.75%) | 3/80 (3.75%) |
| Xin (2015) | 0 | 0 |
| Xu (2017) | 3/76 (3.95%) | 4/70 (5.71%) |
| Xu (2019) | NR | NR |
| Zeng (2019) | 7/49 (16.7%) | 7/49 (16.7%) |
| Zhang (2017) | 0 | 1/48 (2.08%) |
| Zhang (2017) | NR | NR |
| Zhang (2018) | 0 | 0 |
| Zhao (2017) | 5/45 (11.1%) | 3/45 (6.70%) |
| Zou (2019) | 4/38 (10.53%) | 3/38 (7.89%) |
| Zhang (2020) | 6/42 (14.29%) | 5/41 (12.20%) |
| An (2020) | 0 | 1/32 (3.13%) |
| Ye (2020) | NR | NR |
| Li (2020) | NR | NR |
Notes: NR, not report.