From: Hand-assisted laparoscopic surgery versus laparoscopic right colectomy: a meta-analysis
Design | Study | Selection bias | Performance bias | Detection bias | Attrition bias | Reporting bias | Other bias | |||
RCT | Ng et al. [20] | Low risk | High risk | High risk | Low risk | Low risk | Unclear risk | |||
Design | Study | Selection | Comparability | Exposure | Quality judgment | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
non-RCTs | Bae et al. [19] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | 7 | |
Papaconstantinou et al. [21] | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | ||
Qiu et al. [22] | ★ | ★ | ★ | ★★ | ★ | ★ | ★ | 8 | ||
Vogel et al. [23] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | 7 |