Research Article
Associations between ERAP1 Gene Polymorphisms and Psoriasis Susceptibility: A Meta-Analysis of Case-Control Studies
Table 2
Quality assessment of included studies according to the Newcastle-Ottawa Scale.
| | Item/study | Adequate definition of cases | Representativeness of cases | Selection of control subjects | Definition of control subjects | Control for important factor or additional factor | Exposure assessment | Same method of ascertainment for all subjects | Nonresponse rate | Total score |
| | Anamika 2017 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Andrzej 2018 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7 | | Anne 2011 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Bergboer 2012 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Fu 2018 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Josefin 2013 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Marta 2018 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Olivia 2016 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 6 | | Yang 2013 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
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