Table 3 Evaluation of trial quality and risk of bias
Randomisation (2) | Blinding (2) | Account of all participants (1) | Total (n/5) | |
|---|---|---|---|---|
Prunty (2008) | 2 | 0 | 1 | 3 |
Meade (2015) | 2 | 0 | 1 | 3 |
McGrath (2017) | 2 | 0 | 1 | 3 |
Vigod (2019) | 2 | 0 | 1 | 3 |
Khalifeh (2019) | 2 | 1 | 0 | 3 |
Shorten (2005) | 2 | 1 | 0 | 3 |
Montgomery (2007) | 1 | 0 | 1 | 2 |
Eden (2014) | 2 | 1 | 0 | 3 |
Wise (2019) | 2 | 0 | 0 | 2 |
Kupperman (2020) | 2 | 0 | 0 | 2 |