Colon capsule endoscopy polyp detection rate vs colonoscopy polyp detection rate: Systematic review and meta-analysis

Table 2 Risk of bias

Ref.	Patient selection	Index test	Reference standard	Floe and timing
Koback-Larsen et al[24]	Low	Low	Low	Low
Spada et al[27]	High	Low	Low	Low
Eliakim et al[29]	High	Low	Low	Low
Pilz et al[30]	High	Low	Low	Low
Hagel et al[25]	Low	Low	Unclear	Low
Holleran et al[26]	Low	Low	Low	Low
Sacher-Huvelin et al[31]	High	Low	Low	Low
Akyüz et al[32]	Unclear	High	High	Low
Eliakim et al[28]	High	Low	Low	Low