Review Article
Intravenous Magnesium Sulphate for Analgesia after Caesarean Section: A Systematic Review
Table 1
Assessment of risk of bias in selected studies based on Cochrane methodology and representation [
12].
| | Agrawal et al. (2015) | Davoudi et al. (2013) | Elebaly et al. (2011) | Elrahman and Youssry (2017) | Helmy et al. (2015) | Maulik et al. (2015) | Mireskandari et al. (2015) | Paech et al. (2006) | Rezae et al. (2014) | Safavi et al. (2017) |
| Selection bias | Random sequence generation | ? | ? | + | + | + | + | + | + | ? | ? | Allocation concealment | ? | ? | + | + | + | + | ? | + | + | ? |
| Performance bias | Blinding of participants and personnel | ? | ? | + | + | ? | + | + | + | + | ? |
| Detection bias | Blinding of outcome assessment | ? | ? | + | + | ? | + | + | + | ? | ? |
| Attrition bias | Incomplete outcome data | ? | ? | + | + | ? | + | + | + | ? | ? |
| GRADE quality rating [12] | M | M | H | H | H | H | H | H | H | M |
|
|
+ = low risk of bias, ? = unclear risk of bias, – = high risk of bias, M = moderate, H = high.
|