Table 2.
Scores of included studies.
| Studies | Studies characteristics (score) | Veritas score | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year of publication | Type of studies | AMSTAR 2 score | PRISMA score | Heterogeneity | Publication bias | ||||||||
| Hong Pan et al. 2018 [26] | 2018 | (10) | RCT | (10) | 11 | (9) | 47 | (10) | 1.64 | (3) | Partially assessed | (10) | 8.67 |
|
| |||||||||||||
| Jinfeng Chen et al. 2018 [27] | 2018 | (9) | RCT | (10) | 9 | (5) | 41 | (6) | 1.4 | (1) | Partially assessed | (10) | 6.83 |
|
| |||||||||||||
| Ding Luo et al. 2018 [5] | 2018 | (8) | RCT | (10) | 11.5 | (10) | 46 | (9) | 2.2 | (6) | None | (5) | 8 |
|
| |||||||||||||
| Xiaotong Wang et al. 2018 [28] | 2018 | (7) | RCT or CCT | (2) | 9 | (5) | 42 | (7) | 3 | (10) | None | (5) | 6 |
|
| |||||||||||||
| Ding Luo et al. 2017 [29] | 2017 | (6) | RCT | (10) | 8 | (3) | 36 | (3) | 1.75 | (4) | Partially assessed | (10) | 6 |
|
| |||||||||||||
| Yanan Wu et al. 2017 [30] | 2017 | (5) | RCT or quasi-RCT | (4) | 9.5 | (8) | 41 | (6) | 1.5 | (2) | Partially assessed | (10) | 5.83 |
|
| |||||||||||||
| Li Xiao et al. 2016 [31] | 2016 | (4) | RCT or CCT | (2) | 9.5 | (8) | 39 | (4) | 3 | (10) | Partially assessed | (10) | 6.33 |
|
| |||||||||||||
| Longyun Zhou et al. 2016 [32] | 2016 | (3) | RCT | (10) | 9.5 | (8) | 44 | (8) | 2 | (5) | None | (5) | 6.5 |
|
| |||||||||||||
| Sheng Li et al. 2014 [33] | 2014 | (2) | RCT or quasi-RCT | (4) | 7.5 | (1) | 35 | (2) | 3 | (10) | None | (5) | 4 |
|
| |||||||||||||
| Juntao Xu et al. 2014 [34] | 2014 | (1) | RCT | (10) | 8 | (3) | 25 | (1) | 2.33 | (7) | None | (5) | 4.5 |
|
| |||||||||||||
| Mean Veritas score | 5.5 | 7.2 | 6 | 5.6 | 5.8 | 7.5 | 6.27 | ||||||
Note. AMSTAR = Assessment of Multiple Systematic Reviews tool; PRISMA = Preferred Reporting Items for Systematic Reviews and Meta-Analyses.