Table 1.

Quality assessment of the selected studies for meta-analysis

S. no	Criteria	High (0–55%)	Moderate (56–78%)	Low (79–100%)
1	Purpose of this study	36	–	–
2	Eligibility criteria	25	6	5
3	Sample size adjustment	36	–	–
4	Research group of people	36	–	–
5	Cut-off criteria (follow-up)	33	3	–
6	Range of anatomical parts	36	–	–
7	Definition of the measurement used	36	–	–
8	Outcome assessment (OS, DFS)	31	5	–
9	Outcome measures (HR, CI)	26	–	10
10	Follow-up rate	27	9	–
	Total selected studies	20	8	8