Table 2.

Assessment of methodological quality of included trials (RCT evaluated by RoB 2.0).

Author (year)	Bias caused by adequacy of randomization	Bias caused by deviations from intended interventions	Bias caused by missing data of dropouts	Bias in measurement of outcomes	Bias in selection of reported results	Overall risk of bias
Chung et al.23	Some concern	Low risk	Low risk	Low risk	Low risk	Some concerns
Handerson et al.26	Some concern	Low risk	Low risk	Low risk	Low risk	Some concerns
Li et al.25	Some concern	Low risk	Low risk	Low risk	Low risk	Some concerns
Mancini et al.24	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk
Stuart et al.27	Low risk	Low risk	Low risk	Low risk	Low risk	Low risk