Table 5.

Methodological index for non-randomized studies (MINORS) tool to assess bias

Criteria	Conway	Bashir	Salvati	Pandit	Ahmed	Thumbo	Mian	Malige
A clearly stated aim	2	2	2	2	2	2	2	2
Inclusion of consecutive patients	2	2	2	2	2	2	2	2
Prospective collection of data	2	0	2	2	0	2	0	0
End points appropriate to the aim of study	2	2	2	1	2	2	2	2
Unbiased assessment of study endpoint	0	0	0	0	0	0	0	0
Follow-up appropriate to the aim of study	2	2	2	2	2	2	2	2
Loss to follow up, < 5%	0	0	0	0	0	0	0	2
Prospective collection of study size	0	0	0	0	0	0	0	0
Total	10	10	10	9	8	10	8	10