Table 2 Quality assessment of the case–control studies using the Newcastle Ottawa scale
Autor | Year | Criterion Scores | Total score | ||
|---|---|---|---|---|---|
Selection | Comparability | Exposure | |||
Arikan | 2011 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Casado | 2013 | 1–4 | 1–2 | 1–2-3 | 7—high quality |
Duarte | 2009 | 1–2-4 | 1–2 | 1–2-3 | 8—high quality |
Fonseca | 2012 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Ghigh | 2017 | 1–2-4 | 1–2 | 1–2-3 | 8—high quality |
Guncu | 2012 | 1–3-4 | 1–2 | 1–2-3 | 8—high quality |
Rakic | 2015 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Rakic | 2020 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Severino | 2011 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Severino | 2016 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |
Teixeira | 2016 | 1–4 | 1–2 | 1–2-3 | 7—high quality |
Yakar | 2018 | 1–2-3–4 | 1–2 | 1–2-3 | 9—high quality |