Table 2.
Jadad score assessing the quality of the 18 studies
| Study | Was the study described as randomized? | Was the method used to generate the sequence of randomization described and appropriate? | Deduct one point if the method used to generate the sequence of randomization was described and it was inappropriate. | Was the study described as double blind? | Was there a description of withdrawals and dropouts? | Was the method of double blinding described and appropriate? | Deduct one point if the study was described as double blind but the method of blinding was inappropriate. |
|---|---|---|---|---|---|---|---|
| Aguilar,2010 [44] | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| Ahamed,2007 [43] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Angelopoulos,2009 [41] | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Caballer,2003 [47] | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| Donnelly,2009 [48] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Dzewaltowski,2010 [50] | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| Graf,2008 [45] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Jiang,2007 [52] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Kriemler,2010 [40] | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| Li,2010 [51] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Llargues,2011 [37] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Llargues,2012 [38] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Lohoman,2003 [49] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| MacKelvie,2004 [39] | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| Magnusson,2012 [42] | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Manios,2002 [33] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Nader,1999 [34] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| Tarro,2014 [46] | 1 | 0 | 0 | 0 | 1 | 0 | 0 |