Table 2. Quality evaluation of systematic reviews according to R-AMSTAR.
| Author, year | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Total score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bright, 2012 | 3 | 2 | 3 | 2 | 2 | 4 | 4 | 2 | 3 | 2 | 3 | 30 |
| Carling, 2013 | 3 | 3 | 4 | 3 | 4 | 4 | 2 | 3 | NA | 1 | 4 | 31 |
| Chaudhry, 2006 | 2 | 3 | 3 | 1 | 2 | 3 | 1 | 2 | NA | 1 | 3 | 21 |
| Durieux, 2008 | 4 | 3 | 4 | 2 | 4 | 4 | 1 | 2 | NA | 1 | 3 | 26 |
| Eslami, 2007 | 3 | 3 | 3 | 1 | 2 | 1 | 1 | 1 | NA | 1 | 1 | 17 |
| Fathima, 2014 | 3 | 3 | 4 | 2 | 3 | 4 | 2 | 2 | NA | 2 | 3 | 28 |
| Fraccaro, 2015 | 3 | 1 | 4 | 3 | 1 | 3 | 1 | 1 | NA | 2 | 3 | 26 |
| Garg, 2005 | 3 | 3 | 3 | 1 | 1 | 2 | 2 | 4 | NA | 1 | 3 | 23 |
| Georgiou, 2013 | 3 | 3 | 4 | 2 | 2 | 2 | 1 | 1 | NA | 2 | 3 | 23 |
| Gillaizeau, 2013 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 2 | 2 | 38 |
| Hemens, 2011 | 4 | 3 | 2 | 1 | 2 | 4 | 2 | 1 | NA | 2 | 3 | 24 |
| Heselmans, 2009 | 3 | 3 | 4 | 2 | 4 | 4 | 1 | 4 | NA | 1 | 3 | 29 |
| Holstiege, 2015 | 2 | 3 | 4 | 3 | 4 | 4 | 2 | 2 | NA | 2 | 3 | 29 |
| Hunt, 1998 | 2 | 3 | 3 | 3 | 1 | 2 | 2 | 2 | NA | 1 | 2 | 21 |
| Jamal, 2009 | 3 | 1 | 4 | 3 | 1 | 2 | 2 | 4 | NA | 1 | 1 | 22 |
| Jeffery, 2013 | 4 | 4 | 3 | 1 | 1 | 4 | 2 | 2 | 2 | 1 | 4 | 28 |
| Lainer, 2013 | 3 | 3 | 4 | 3 | 2 | 4 | 1 | 1 | NA | 1 | 3 | 25 |
| Lobach, 2012 | 3 | 4 | 4 | 2 | 4 | 4 | 3 | 3 | 4 | 4 | 3 | 38 |
| Marasinghe, 2015 | 3 | 1 | 3 | 1 | 0 | 2 | 3 | 2 | NA | 2 | 3 | 20 |
| Marc, 2013 | 1 | 1 | 2 | 1 | 0 | 1 | 1 | 1 | NA | 1 | 1 | 10 |
| Millery, 2010 | 3 | 3 | 4 | 1 | 1 | 4 | 1 | 1 | NA | 2 | 3 | 23 |
| Montgomery, 1998 | 3 | 1 | 3 | 3 | 1 | 4 | 1 | 1 | NA | 1 | 3 | 21 |
| Nieuwlaat, 2011 | 3 | 3 | 3 | 1 | 2 | 4 | 2 | 2 | 4 | 1 | 3 | 28 |
| Njie, 2015 | 2 | 3 | 1 | 1 | 0 | 3 | 2 | 4 | NA | 2 | 3 | 21 |
| Oluoch, 2012 | 3 | 3 | 4 | 2 | 2 | 4 | 1 | 2 | NA | 1 | 2 | 24 |
| O’Reilly, 2012 | 2 | 2 | 3 | 3 | 0 | 3 | 1 | 1 | NA | 1 | 3 | 19 |
| Pearson, 2009 | 3 | 3 | 4 | 2 | 2 | 4 | 2 | 2 | NA | 1 | 3 | 26 |
| Randell, 2007 | 3 | 3 | 3 | 4 | 1 | 2 | 2 | 1 | NA | 1 | 1 | 21 |
| Robertson, 2010 | 3 | 4 | 4 | 2 | 2 | 4 | 3 | 2 | NA | 1 | 3 | 28 |
| Roshanov, 2011 (1) | 4 | 4 | 4 | 3 | 2 | 4 | 2 | 2 | NA | 2 | 3 | 30 |
| Roshanov, 2011 (2) | 3 | 3 | 3 | 1 | 2 | 4 | 2 | 2 | NA | 2 | 3 | 25 |
| Sahota, 2011 | 3 | 3 | 3 | 3 | 2 | 4 | 3 | 2 | NA | 2 | 3 | 28 |
| Schedlbauer, 2009 | 3 | 3 | 3 | 3 | 2 | 1 | 2 | 1 | NA | 1 | 1 | 20 |
| Shebl, 2007 | 2 | 1 | 3 | 3 | 1 | 4 | 1 | 1 | NA | 1 | 3 | 20 |
| Shojania, 2009 | 3 | 3 | 3 | 4 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 24 |
| Shojania, 2010 | 3 | 3 | 3 | 4 | 2 | 2 | 1 | 1 | 1 | 1 | 3 | 24 |
| Sintchenko, 2007 | 3 | 1 | 3 | 2 | 1 | 4 | 1 | 1 | NA | 2 | 1 | 19 |
| Souza, 2011 | 3 | 3 | 3 | 3 | 2 | 4 | 2 | 2 | NA | 2 | 3 | 27 |
| Sturzlinger, 2009 | 2 | 1 | 3 | 2 | 1 | 1 | 1 | 1 | NA | 1 | 1 | 14 |
| Tawadrous, 2011 | 3 | 4 | 3 | 4 | 2 | 4 | 2 | 1 | NA | 1 | 3 | 27 |
| Vedel, 2013 | 3 | 3 | 3 | 3 | 0 | 2 | 2 | 1 | NA | 2 | 2 | 22 |
| Welch, 2013 | 2 | 2 | 3 | 2 | 2 | 4 | 1 | 1 | NA | 2 | 3 | 22 |
| Wong, 2010 | 3 | 3 | 3 | 2 | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 29 |
| Yourman, 2008 | 3 | 3 | 4 | 1 | 2 | 4 | 1 | 1 | NA | 2 | 1 | 22 |
NA: not applicable