[Retracted] Systematic Evaluation and Meta-Analysis of Randomized Controlled Trials of Fire Needle Combined Phototherapy for the Treatment of Vitiligo

Table 3

Risk bias tool for assessing different trials.

Random trials	Risks	Minimum risk bias	Medium risk bias	Maximum risk bias
12	Selection-based approach (random control trials)	15	45	80
24	Hiding the allocation based on selection	17	60	90
36	Masking the patients and attenders seeking the performance	20	57	79
48	Detection of outcomes	22	64	87
64	Outcome-based on attrition	25	67	89
72	Reporting the selective part	18	63	92
84	Other biasing methods	21	56	89