Adding programmed death 1/programmed death ligand 1 inhibitors to first-line standard-of-care therapy for metastatic colorectal cancer: A meta-analysis

Table 2 Quality assessment by Cochrane risk of bias

Ref.	Random sequence generation	Allocation concealment	Blinding	Incomplete outcome data	Selective reporting	Other bias
Lenz et al[30], 2024	L	L	H	L	L	L
Antoniotti et al[31], 2022	L	L	H	L	L	L
Antoniotti et al[32], 2024
Wang et al[33], 2024	L	U	L	L	L	L
Redman et al[34], 2022	L	L	H	L	L	L
Ree et al[35], 2024	L	L	H	L	L	L
Segal et al[36], 2024	L	L	H	L	L	L

L: Lower risk; H: High risk; U: Unclear.