Table 4.

Non- Randomised trials assessed according to MINORS criteria.

	MINORS criteria	Barman et al., 2019.	Kumar et al.	Barman et al., 2021	Yadav et al.
1	A clearly stated aim (0,1 or 2)	2	2	2	2
2	Inclusion of consecutive patients	2	1	2	2
3	Prospective collection of data	2	2	2	2
4	Endpoints appropriate to the aim of the study	2	2	2	2
5	Unbiased (blinded) assessment of the study endpoint	2	0	2	0
6	Follow-up period appropriate to the aim of the study	2	2	2	2
7	Loss to follow up less than 5 %:	1	0	1	0
8	Prospective calculation of the study size	2	0	2	0
9	An adequate control group	2	2	2	2
10	Contemporary groups:	2	2	2	2
11	Baseline equivalence of groups	1	2	2	0
12	Adequate statistical analyses	2	0	2	0
	Total (20–24 high, 15–19 mod, <15 low)	22	15	23	14

MINORS, methodological index for non-randomized studies.