TABLE A2.

MINORS Scores^a

Author (Year)	Clearly Stated Aim	Inclusion of Consecutive Patients	Prospective Data Collection	Endpoints Appropriate to Study Aim	Unbiased Assessment of Study Endpoint	Follow-up Period Appropriate to Study Aim	% Lost to Follow-up	Prospective Calculation of Study Size	Adequate Control Group	Contemporary Groups	Baseline Equivalence of Groups	Adequate Statistical Analyses	Total
Anakwenze et al1 (2013)	2	2	2	1	1	2	2	0	2	2	2	2	20/24
Boyer et al5 (2015)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Cho et al8 (2011)	2	2	2	1	1	2	2	0	2	2	1	2	19/24
Choi et al10 (2012)	2	2	2	2	2	2	1	0	N/A	N/A	N/A	N/A	13/16
Choi et al11 (2014)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
El-Azab et al17 (2010)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
Frank et al18 (2008)	2	2	2	1	1	1	2	0	N/A	N/A	N/A	N/A	11/16
Gerhardt et al23 (2012)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Haneveld et al24 (2013)	2	1	2	2	1	2	2	0	2	2	2	2	20/24
Hug et al25 (2015)	2	2	2	2	2	2	2	0	1	2	2	2	21/24
Ide et al26 (2015)	2	1	2	2	2	2	2	0	2	2	1	2	20/24
Kim et al30 (2014)	2	1	1	2	2	1	2	0	2	2	2	2	19/24
Kim et al29 (2013)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Kim et al31 (2014)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Kim et al33 (2013)	2	1	1	2	2	2	1	0	2	2	1	2	18/24
Lee et al36 (2013)	2	1	2	2	2	2	2	0	N/A	N/A	N/A	N/A	13/16
McCormick et al44 (2014)	2	2	2	2	2	2	1	2	2	2	2	2	23/24
Mihata et al45 (2011)	2	1	2	2	2	2	2	0	2	2	2	2	21/24
Neyton et al46 (2013)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
Park et al47 (2014)	2	2	2	2	2	2	2	0	1	1	2	2	20/24
Park et al48 (2013)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Park et al49 (2013)	2	1	2	2	2	2	1	0	N/A	N/A	N/A	N/A	12/16
Park et al50 (2010)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
Park et al53 (2014)	2	1	2	2	2	2	1	0	1	2	2	2	19/24
Pennington et al55 (2010)	2	2	2	2	2	2	1	0	2	2	2	2	21/24
Rhee et al57 (2012)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Ryu et al58 (2015)	2	2	2	1	2	1	2	0	2	2	2	2	20/24
Sethi et al60 (2010)	2	2	2	2	2	2	1	0	N/A	N/A	N/A	N/A	13/16
Shin et al61 (2015)	2	2	2	2	2	2	2	0	2	2	2	2	22/24
Toussaint et al66 (2011)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
Tudisco et al68 (2013)	2	1	2	2	2	2	1	0	2	2	2	2	20/24
Voigt et al70 (2010)	2	2	2	2	2	2	2	0	N/A	N/A	N/A	N/A	14/16
Wang et al72 (2015)	2	2	2	2	2	2	2	2	2	2	2	2	24/24
Werthel et al73 (2014)	2	2	2	2	1	2	2	0	N/A	N/A	N/A	N/A	13/16

^aMINORS, Methodological Index for Non-Randomized Studies; N/A, not applicable.