Table 2. Cochrane bias assessment tool.

Cochrane Criteria (Yes, No, Uncertain)	Baekdal et al., 2018 [13]	Flint et al., 2021 [14]	Neuschwander-Tetri et al., 2015 [15]	Newsome et al., 2021 [16]	Younossi et al., 2019 [17]
Adequate sequence generation?	Yes	Yes	Yes	Yes	Yes
Allocation concealment used?	Uncertain	Uncertain	Uncertain	Yes	Uncertain
Blinding?	Yes	Yes	Yes	Yes	Yes
Are concurrent therapies similar?	No	Yes	Yes	Yes	Yes
Incomplete outcome data addressed?	Yes	Yes	Yes	Yes	Yes
Uniform and explicit outcome definitions?	Yes	Yes	Uncertain	Yes	Yes
Free of selective outcome reporting?	Yes	Yes	Yes	Yes	Yes
Free of other bias?	Yes	Yes	Yes	Yes	Yes
Overall risk of bias?	Yes	Yes	Yes	Yes	Yes
Our Evaluation	7/9 (medium quality)	8/9 (high quality)	8/9 (high quality)	9/9 (high quality)	8/9 (high quality)