. 2021 Oct 28;23:101674. doi: 10.1016/j.jcot.2021.101674

Table 5.

MINORS—risk of bias assessment of nonrandomized studies.

Variable	Padolino¹¹	Katthagen¹²	Schliemann¹³	Mitchell¹⁵	Byun¹⁶	Guzzini¹⁷	Ziran¹⁸
1.A clearly stated aim	2	2	2	2	2	2	2
2. Inclusion of consecutive patients	0	0	2	0	0	2	2
3. Prospective collection of data	0	2	2	0	0	2	0
4. Endpoints appropriate for aim of study	2	2	2	2	2	2	2
5. Unbiased assessment of the study endpoint	0	0	2	0	0	0	2
6. Follow-up period appropriate for aim of the study	2	2	2	2	2	2	2
7. Loss of follow-up less than 5%	2	0	0	0	0	0	0
8. Prospective calculation of the study size	0	0	0	0	0	0	0
9. An adequate control group	2	2	2	0	0	2	2
10. Contemporary groups	2	0	0	0	0	0	0
11. Baseline equivalence of groups	2	0	2	0	0	0	2
12. Adequate statistical analyses	0	0	2	0	0	0	2
TOTAL (maximum score: 24)	14	10	18	6	6	12	16
Quality of evidence	Fair	Fair	Good	Very Low	Very Low	Fair	Fair

Score: 0 (not adequate), 2 (reported and adequate).