Table 2. The Newcastle-Ottawa Assessment scale for included nonrandomized trials. |
Study |
Selection |
Comparability of Cases and Control |
Outcome |
Case Definition Adequacy |
Repres1 of Case |
Selection of Controls |
Definition of Controls |
Asc 2 of Exposure |
Same Method of Asc 2 for Cases and Controls |
Nonresponse Rate |
Total |
Alentorn-Geli, 2010 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
|
6 |
Azboy, 2014 |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
8 |
Cury, 2017 |
⋆ |
|
⋆ |
⋆ |
⋆ |
|
⋆ |
⋆ |
6 |
de Abreu, 2014 |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
Franceschi, 2013 |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
|
6 |
Kim, 2011 |
⋆ |
|
⋆ |
⋆ |
⋆ |
|
⋆ |
⋆ |
6 |
Lee, 2014 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
Metso, 2020 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
Ozer, 2018 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
|
6 |
Pande, 2017 |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
Razazadeh, 2016 |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
8 |
Sohn, 2014 |
⋆ |
|
⋆ |
⋆ |
⋆ |
|
⋆ |
⋆ |
6 |
Sukur, 2016 |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
8 |
Taşdemir, 2015 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
Wei, 2014 |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
|
⋆ |
6 |
Zehir, 2015 |
⋆ |
⋆ |
|
⋆ |
⋆ |
⋆ |
⋆ |
⋆ |
7 |
|
1 Repres = Representativenes; |
|