Table 3.

Methodological quality assessment and risk of bias analysis based on JBI (Joanna Briggs Institute).

Study	Random sequence generation	Classification hiding	Blind method	Withdrawal and Lost to Follow-up	ITT analysis	Baseline comparison	Quality level
Song et al. (9)	Adopt	Described	Double-blind	Not described	Adopt	Described	Grade A
Li et al. (10)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Chen et al. (11)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Zhang et al. (12)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Li et al. (13)	Adopt	Not described	Single-blind	Described	Adopt	Described	Grade A
Liu et al. (14)	Adopt	Not described	Double-blind	Not described	Adopt	Described	Grade B
Du et al. (15)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Chen et al. (16)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Zhang et al. (17)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B
Liu et al. (18)	Adopt	Not described	Single-blind	Not described	Adopt	Described	Grade B