Table 2 Main characteristics of included studies
Study | Year | Country | Ethnicity | Case/Control | Case | Control | HWE | ||
|---|---|---|---|---|---|---|---|---|---|
M | W | M | W | ||||||
Rs17728338 (G/A) | |||||||||
 Bowes (1) [19] | 2011 | UK | UK | 742/5198 | 114 | 1370 | 572 | 9824 | 0.42 |
 Bowes (2) [19] | 2011 | UK | Ireland | 161/334 | 29 | 293 | 33 | 635 | 0.04 |
 Das [30] | 2015 | Europe | European | 2212/2855 | 398 | 4026 | 286 | 5424 | NA |
 Han [31] | 2016 | China | Han population | 140/476 | 54 | 226 | 85 | 867 | >  0.05 |
 Indhumathi [21] | 2015 | India | Indian | 360/360 | 202 | 518 | 147 | 573 | 0.747 |
 Li [22] | 2014 | China | Chinese | 201/300 | 56 | 544 | 40 | 560 | 0.754 |
 Munir [26] | 2015 | Pakistani | Asian | 533/373 | 142 | 924 | 67 | 679 | >  0,05 |
 Nair (1) [27] | 2009 | USA | Caucasian | 1359/1400 | 253 | 2465 | 157 | 2643 | NA |
 Nair (2) [27] | 2009 | USA | Caucasian | 5048/5051 | 878 | 9218 | 546 | 9556 | NA |
 Villarreal-MartÃnez [29] | 2016 | México | México | 46/103 | 11 | 81 | 11 | 195 | 0.245 |
 Yang [23] | 2013 | China | Chinese | 974/1181 | 276 | 1672 | 213 | 2149 | 1 |