Table 2.
Risk of bias in the included studies evaluated by the CAMARADES’ study quality checklist.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | Total count of Y | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Du 26 | Y | Y | Y | N | N | Nn | Y | N | Y | Y | 6 |
| Liu 33 | Y | Y | Y | N | Y | Nn | Y | N | N | Y | 6 |
| Wang 27 | Y | Y | Y | N | N | Nn | Y | N | N | Y | 5 |
| Wang 28 | Y | Y | Y | N | N | Nk | Y | N | Y | Y | 6 |
| Wang 29 | Y | Y | Y | N | N | Nk | Y | N | Y | Y | 6 |
| Jiang31 | Y | N | Y | N | N | Nk | Y | N | N | Y | 4 |
| Wang 34 | Y | N | Y | N | N | Nk | Y | N | N | Y | 4 |
| Wang 37 | Y | Y | Y | N | N | Nk | Y | N | Y | Y | 6 |
| Zhu 30 | Y | Y | Y | N | N | Nn | Y | N | N | Y | 6 |
| Wang 35 | Y | Y | Y | N | N | Nn | Y | N | Y | Y | 6 |
| Weilan38 | Y | Y | Y | N | N | Nk | Y | N | Y | Y | 6 |
| Luo 40 | Y | Y | Y | N | N | Nk | Y | N | N | Y | 5 |
| Zhang 36 | Y | Y | Y | N | N | Nk | Y | N | N | Y | 5 |
| Xiao 7 | Y | Y | Y | N | N | Nn | Y | N | N | Y | 5 |
| Yu 32 | N | Y | Y | N | N | Nn | Y | N | N | Y | 4 |
| Zhu 39 | N | Y | Y | N | N | Nk | Y | N | Y | Y | 5 |
| Total count of Y | 14 | 14 | 16 | 0 | 1 | 0 | 16 | 0 | 7 | 16 |
(1) Publication in peer-reviewed journal (2) Statement of control of temperature (3) Randomization of treatment or control (4) Allocation concealment (5) Blinded assessment of outcome (6) Avoidance of anesthetics with marked intrinsic properties (7) Use of a suitable animal model (8) Sample size calculation (9) Statement of compliance with regulatory requirements (10) Statement regarding possible conflict of interest.
Y, Yes; N, No; Nn, Not necessary; Nk, Not known.