Table 1.
Characteristics of the studies
| First author/Year | Ethnicity | Age | Gender | Case | Control | Case genotype | Control genotype | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
||||||||||
| DD | ID | II | DD | ID | II | ||||||
| Ito/2002 | Asian | 66.0 | Mixed | 63 | 21 | 10 | 27 | 26 | 1 | 6 | 14 |
| Degirmenci/2005 | Caucasian | 57.6 | Mixed | 65 | 208 | 21 | 38 | 6 | 49 | 113 | 46 |
| Costacou/2006 | Caucasian | 49.5 | Mixed | 114 | 256 | NA | NA | NA | NA | NA | NA |
| Stephens/2006 | Caucasian | 69.9 | Female | 173 | 399 | 61 | 87 | 25 | 125 | 199 | 78 |
| Jurado/2012 | Caucasian | 69.8 | Mixed | 82 | 201 | NA | NA | NA | NA | NA | NA |
| Mansoor/2012 | Caucasian | NA | NA | 496 | 276 | 56 | 161 | 59 | 105 | 230 | 161 |
| Inanir/2013 | Caucasian | 57.2 | Mixed | 235 | 281 | 48 | 49 | 24 | 37 | 42 | 21 |
| Settin/2014 | Caucasian | 55.5 | Mixed | 202 | 231 | NA | NA | NA | NA | NA | NA |
NA, not available.