Included literature	Standardized percentage of each field (%)						Number of fields (PCS) ≥ 60%	Number of fields (PCS) ≥ 30%	Recommendation level
Included literature	Scope and purpose	participant	Guideline rigor	Guidance clarity	Applicability of guidelines	Guide editorial independence	Number of fields (PCS) ≥ 60%	Number of fields (PCS) ≥ 30%	Recommendation level
Zhi XY et al. [13]	88.89	77.78	60.42	50.00	41.67	83.33	5	6	B
Andrew L et al. [14]	88.89	77.78	60.42	50.00	41.67	83.33	4	6	B
Gao S et al. [15]	83.33	80.56	75.00	77.78	75.00	79.17	6	6	A
Cao H et al. [16]	83.33	61.11	72.92	83.33	62.50	66.67	6	6	A