References | Year | Randomization | Blinding | Withdraw and dropout | Jadad’s score |
|---|
Wang et al. [48] | 2019 | 2 | 0 | 0 | 2 |
Lee et al. [47] | 2019 | 2 | 0 | 0 | 2 |
Shi et al. [44] | 2018 | 2 | 0 | 0 | 2 |
Park et al. [43] | 2018 | 2 | 0 | 2 | 4 |
Li1 et al. [35] | 2016 | 2 | 0 | 0 | 2 |
Hu et al. [34] | 2016 | 2 | 0 | 2 | 4 |
Cai et al. [15] | 2011 | 1 | 0 | 1 | 1 |
Cui et al. [30] | 2015 | 2 | 0 | 0 | 2 |
- Randomization: randomization was described with appropriate method—2 score, randomization was described without appropriate method—1 score, no randomization—0 score. Blinding: blinding was performed on all doctors and patients—2 score, blinding was partially performed on doctors and patients—1 score, no blinding—0 score. Withdraw and dropout: the reason of withdraw and dropout was described—1 score, the reason of withdraw and dropout was not described—0 score. Quality: high-quality trials should score ≥ 3, moderate-quality trials should score ≥ 2
