Table 2.

Risk of bias in the non-randomised studies, assessed with the ROBINS-I tool.

Study (design)	D1 confounding	D2 Selection of participants	D3 Classification of interventions	D4 Deviations from intended interventions	D5 Missing data	D6 Measurement of outcomes	D7 Selection of the reported result	Overall risk of bias
Chae 2019 (16)	Moderate	Moderate	Low	Low	Low	Low	Moderate	Moderate
Hunt 2020 (17)	Serious	Moderate	Low	Moderate	Moderate	Moderate	Moderate	Serious
Oh 2021 (18)	Moderate	Moderate	Moderate	Moderate	Low	Moderate	Moderate	Moderate
Serrano 2021 (19)	Moderate	Low	Low	Moderate	Low	Low	Moderate	Moderate
Traeger 2022 (20)	Serious	Moderate	Low	Moderate	Moderate	Moderate	Moderate	Serious