Reference | Randomization | Blinding | Withdraw and dropout | Jadad’s score | Quality |
---|
Lee [19] | 2 | 0 | 1 | 3 | High |
Vlug [18] | 2 | 1 | 1 | 4 | High |
Q.Wang [16] | 2 | 0 | 1 | 3 | High |
G.Wang [17] | 2 | 0 | 1 | 3 | High |
Feng [20] | 2 | 1 | 1 | 4 | High |
- 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.