Table 2.
Cochrane Risk of Bias Tool ratings
| Study | Randomization | Allocation | Blinding | Attrition | Selective reporting | Other | Total |
|---|---|---|---|---|---|---|---|
| Bergdahl et al., 2014 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Bokhan et al., 2003 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Bondi et al., 2018 | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
| Bonnet et al., 2009 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Di Nicola et al., 2010 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Gualtieri et al., 2011 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Le Bon et al., 2003 | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
| Lennox and Cecchini-Sternquist et al., 2018 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Liappas et al., 2004 | Low risk | Low risk | High risk | Low risk | Low risk | Low risk | High risk |
| Martinotti et al., 2007 | Low risk | Low risk | High risk | Low risk | Low risk | Low risk | High risk |
| Martinotti et al., 2010a | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
| Mueller et al., 1997 | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
| Myrick et al., 2009 | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk | Low risk |
| Overall et al., 1973 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Stojek et al., 1990 | High risk | High risk | High risk | Low risk | Low risk | Low risk | High risk |
| Trevisan et al., 2008 | Low risk | Low risk | Low risk | Low riks | Low risk | Low risk | Low risk |