Table 1.

MINORS Score.^a

Study	Aim	Inclusion	Prospective	Endpoints	Unbiased	Follow-up	Loss	Calculation	CG	G	Baseline	SA	Total Scoreb
Burg et al3	2	2	0	2	0	2	2	2	0	0	0	2	14
Holme et al14	2	2	2	2	0	2	2	2	0	0	0	2	16
Chan et al4	2	2	2	2	0	2	1	2	0	0	0	2	15
Liszka and Gądek21	2	2	0	2	0	2	2	2	0	0	0	2	14
de Carvalho et al5	2	2	2	2	0	2	2	2	0	0	0	2	16
Díaz Fernández6	2	2	0	2	0	2	2	2	0	0	0	2	14
Tay et al35	2	2	2	2	2	2	2	2	2	2	2	2	24
Brogan et al2	2	2	2	2	0	2	1	2	2	2	2	2	21
Jowett and Bedi16	2	2	2	2	0	2	1	2	0	0	0	2	15
Mikhail et al27	2	2	0	2	0	2	2	2	0	0	0	2	14
Lai et al20	2	2	2	2	2	2	1	2	2	2	2	2	23
Frigg et al9	2	2	0	2	0	2	2	2	0	0	0	2	14
Nunes et al29	2	2	2	2	0	2	2	2	0	0	0	2	16
Ghioldi et al10	2	2	0	2	0	2	1	2	0	0	0	2	13
Kurashige17	2	2	2	2	0	2	0	2	0	0	0	2	14
Marijuschkin et al24	2	2	2	2	0	2	2	2	0	0	0	2	16

^aAim: a clearly stated aim. Inclusion: inclusion of consecutive patients. Prospective: prospective collection of data. Endpoint: endpoints appropriate to the aim of the study. Unbiased: unbiased assessment of the study endpoint. Follow-up: follow-up period appropriate to the aim of the study. Loss: loss to follow-up <5%. Calculation: prospective calculation of the study size. CG: an adequate control group. G: contemporary group. Baseline: baseline equivalence of groups. SA: adequate statistical analyses.

^bScores: 0 = not reported; 1 = reported by study but inadequate; 2 = reported and adequate.