Table 2.
References | Selection bias sequence generation | Selection bias allocation concealment | Performance bias | Detection bias | Attrition bias | Selective reporting bias | Other potential risk of bias |
---|---|---|---|---|---|---|---|
Andersson et al. (1999) | Low | High | High | High | Low | Low | High |
Andersson et al. (2003) | Low | High | High | High | Low | Low | Low |
Andersson et al. (2001) | Low | High | High | High | Low | High | High |
Gallucci, Grutter, Chuang et al. (2011) | Unclear | High | High | High | Unclear | Low | High |
Gallucci, Grutter, Nedir et al. (2011) | Low | Low | Low | Low | Low | Low | High |
Patil et al. (2014) | Unclear | High | High | Low | High | High | Low |
Canullo, Genova et al. (2016) and Canullo, Tallarico et al. (2016) | Low | Low | Low | Low | Low | High | Low |
Baldini et al. (2016) | Low | Low | Low | Low | Unclear | Low | High |
Carrillo de Albornoz et al. (2014) | Low | Low | Low | Low | Low | Low | High |
Fenner et al. (2016) | Unclear | High | High | High | Low | Low | Low |
Hosseini et al. (2011) | Low | Low | High | Low | Low | Low | Low |
Van Assche et al. (2012) | Low | High | High | Unclear | Low | Low | High |
Nicu et al. (2012) | Low | High | High | High | Low | Low | Low |
Weinlander et al. (2011) | Low | High | High | High | Low | High | High |
Sailer et al. (2009) | Unclear | High | High | High | Low | High | High |
Zembic et al. (2009) | Low | High | High | High | Low | High | Low |
Zembic et al. (2013) | Unclear | High | High | High | Low | Low | Low |
Wittneben et al. (2017) | Low | Low | Low | Low | Low | Low | High |