Table 2 Study quality assessment
Study | Selection criteria | Comparability | Outcome | ||||||
|---|---|---|---|---|---|---|---|---|---|
Case definition | Representativeness of the cases | Selection of controls | Definition of controls | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-respondent rate | Total score | ||
Case-control Studies | |||||||||
Firmino et al. 2016 [30] | ā | ā | ā | ā | ā | ā | ā | ā | 8/9 |
Vieira-Andrade et al. 2015 [32] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Bendo et al. 2014 [36] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Cross-sectional studies | |||||||||
Soares et al. 2018 [22] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Silva-Oliveira et al. 2018 [23] | ā | ā | ā ā | ā | ā | ā | 7/9 | ||
Martins et al. 2018 [24] | ā | ā | ā | ā ā | ā | ā | ā | 9/9 | |
Ramos-Jorge et al. 2017 [4] | ā | ā | ā | ā ā | ā | ā | ā | 8/9 | |
Neves et al. 2017 [25] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
GonƧalves et al. 2017 [26] | ā | ā | ā | ā | ā | 5/9 | |||
Gomes et al. 2017 [27] | ā | ā | ā | ā | ā | ā | ā | 7/9 | |
Bomfim et al. 2017 [28] | ā | ā | ā | ā | ā | ā | ā | ā | 8/9 |
Pulache et al. 2016 [29] | ā | ā | ā | ā ā | ā | ā | ā | 8/9 | |
Feldens et al. 2016 [31] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Freire-Maia et al. 2015 [33] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Abanto et al. 2015 [34] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Viegas et al. 2014 [5] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Gomes et al. 2014 [35] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Abanto et al. 2014 [37] | ā | ā | ā | ā ā | ā | ā | ā | 8/9 | |
Siqueira et al. 2013 [38] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Dame-Teixeira et al. 2013 [39] | ā | ā | ā | ā | ā | ā | ā | 7/9 | |
Viegas et al. 2012 [40] | ā | ā | ā ā | ā | ā | ā | 7/9 | ||
Traebert et al. 2012 [41] | ā | ā | ā | ā ā | ā | ā | ā | 8/9 | |
Piovesan et al. 2011 [42] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |
Aldrigui et al. 2011 [43] | ā | ā ā | ā | ā | 5/9 | ||||
Bendo et al. 2010 [44] | ā | ā | ā | ā ā | ā | ā | ā | 8/9 | |
Piovesan et al. 2010 [45] | ā | ā | ā | ā | ā ā | ā | ā | ā | 9/9 |