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. 2018 Jun 20;85(2):237–243. doi: 10.1016/j.bjorl.2018.05.004

Table 2.

Assessment of the quality of the studies using the methodological index for non-randomized studies (MINORS).

Author, year A clearly stated aim Inclusion of consecutive patients Prospective collection of data Endpoints appropriate to the aim of the study Unbiased assessment of the study endpoint Follow-up period appropriate to the aim of the study Loss to follow up less than 5% Prospective calculation of the study size Score
Hyun et al., 2012 2 2 2 2 2 1 2 0 13
Choi et al., 2008 2 2 2 1 1 1 2 0 11
Zhang et al., 2015 2 2 2 2 1 2 2 0 13
So et al., 2012 2 2 2 2 2 1 2 0 13

0, represented that the item was not reported in the article; 1, represented that the item was reported but deficiently; 2, represented that the item was reported completely and appropriately.