Table 2.

Risk-of-bias assessment of included randomized controlled trials (N=6).

Risk of Bias 2 Tool	Bias arising from the randomization process	Bias due to deviations from intended interventions	Bias due to missing data	Bias in measurement of outcomes	Bias in selection of the reported result
Priebe et al [28]	Some concerns	Some concerns	Low	Some concerns	Low
Hou et al [29]	Low	Some concerns	Low	Some concerns	Low
Shebib et al [30]	Low	Some concerns	Low	Some concerns	Low
Toelle et al [31]	Some concerns	Low	Low	Some concerns	Low
Chhabra et al [32]	Low	Low	Low	Some concerns	Low
Almhdawi et al [33]	Low	Some concerns	Low	Low	Low