Author, Year | Is the case definition adequate? | Representativeness of the cases | Selection of controls | Definition of controls | Comparability of cases and controls on the basis of the design or analysis | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-response rate | NOS |
---|---|---|---|---|---|---|---|---|---|
Miyamoto, 2007 (1) [14] | ⭐ | ⭐ | ⭐ | ⭐ | NA | ⭐ | ⭐ | NA | 6 |
Miyamoto, 2007 (2) [14] | ⭐ | ⭐ | ⭐ | ⭐ | NA | ⭐ | ⭐ | NA | 6 |
Tsezou, 2008 [20] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | NA | 7 |
Yao, 2008 [23] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Vaes, 2009 [21] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Valdes, 2009 [22] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | NA | 7 |
Takahashi, 2010 [18] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | NA | 7 |
Cao, 2010 [11] | NA | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | Na | 7 |
Tawonsawatruk, 2011 [19] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Shin, 2012 [17] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Mishra, 2017 [13] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Ozcan, 2017 [16] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | ⭐ | NA | 7 |
Elazeem, 2017 [12] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |
Zhang, 2019 [24] | NA | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 7 |
Mohasseb, 2019 [15] | ⭐ | ⭐ | ⭐ | ⭐ | ⭐⭐ | ⭐ | ⭐ | NA | 8 |