Study, year of publication | Selection bias | Performance bias | Attrition bias | Detection bias | Reporting bias | Overall bias |
---|---|---|---|---|---|---|
Shao et al., 2019 [28] | Low risk | Some concerns | Low risk | Some concerns | Low risk | Some concerns |
Lin et al., 2015 [27] | Some concerns | Some concerns | Low risk | Some concerns | Low risk | Some concerns |
Mao et al., 2013 [26] | Some concerns | Some concerns | Low risk | Some concerns | Low risk | Some concerns |
Luna-Pizarro et al., 2006 [24] | Some concerns | Some concerns | Low risk | Some concerns | Low risk | Some concerns |