Table 2.

Modified MINORS score of all eligible nonrandomized comparative studies.

Author	①	②	③	④	⑤	⑥	⑦	⑧	Score
Belli et al.	2	2	1	2	2	1	2	1	13
Tranchart et al.	2	2	1	1	2	1	2	2	13
Kim et al.	2	1	1	2	2	2	1	1	12
Truant et al.	2	2	1	1	2	2	1	1	12
Lee et al.	2	2	1	1	2	2	1	1	12
Ahn et al.	2	2	1	1	2	2	2	2	14
Kim et al.	2	1	1	2	2	2	1	1	12
Memeo et al.	2	1	1	1	2	1	2	2	12
Lau et al.	2	1	2	1	2	2	2	1	13
Lee et al.	2	1	1	1	2	2	1	2	12
Luo et al.	2	1	1	1	2	2	2	2	13
Takahara et al.	2	1	1	1	2	2	2	2	13
Han et al.	2	1	1	1	2	2	2	2	13
Yoon et al.	2	1	1	1	2	2	1	2	12
Cheung et al.	2	2	1	1	2	2	2	2	14
Sposito et al.	2	2	1	1	2	2	2	2	14
Jiang et al.	2	1	1	1	2	2	2	2	13
Komatsu et al.	2	1	1	1	2	2	2	1	12
Yoon et al.	2	1	2	2	2	2	2	1	14
Xu et al.	2	2	2	1	2	2	2	1	14

① Consecutive patients, ② prospective data collection, ③ reported endpoints, ④ unbiased outcome evaluation, ⑤ appropriate controls, ⑥ contemporary groups, ⑦ groups equivalent, ⑧ sample size.