Table 2 Quality assessment of the six randomized controlled trials included in the meta-analysis
Source | Randomization | Allocation concealment | Blinding | Description of withdrawals and dropouts | Jadad score |
|---|---|---|---|---|---|
Russell JA, 2013 [12] | Yes | Uncertain | Yes | Yes | 3 |
Gordon AC, 2010 [13] | Yes | Adequate | Yes | Yes | 5 |
Russell JA, 2009 [14] | Yes | Adequate | Yes | Yes | 5 |
Morelli A, 2009 [15] | Yes | Adequate | Uncertain | Yes | 3 |
Russell JA, 2008 [8] | Yes | Adequate | Yes | Yes | 5 |
Lauzier F, 2006 [16] | Yes | Adequate | Uncertain | Yes | 3 |