Table 2 Characteristics of the included studies
From: IL-13 -1112 polymorphism and periodontitis susceptibility: a meta-analysis
Author | Year | Distribution area | Cases (n) | Controls (n) | Case genotype | Control genotype | HWE (P) | Gene detection method | Disease type | Quality Score | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CC | CT | TT | CC | CT | TT | |||||||||
Gonzales | 2007 | Germany | 58 | 51 | 19 | 29 | 10 | 17 | 29 | 5 | 0.145 | PCR-RFLP | AgP | 7 |
Wu YM1 | 2010 | China | 60 | 95 | 47 | 13 | 0 | 52 | 41 | 2 | 0.059 | PCR-RFLP | AgP | 6 |
Wu YM2 | 2010 | China | 204 | 95 | 117 | 84 | 3 | 52 | 41 | 2 | 0.059 | PCR-RFLP | CP | 6 |
Zhang YJ | 2012 | China | 110 | 106 | 81 | 24 | 5 | 70 | 32 | 4 | 0.886 | PCR-RFLP | CP | 6 |
Chen D | 2013 | China | 278 | 324 | 171 | 67 | 40 | 208 | 92 | 24 | 0.004 | MALDI-TOF-MS | CP | 6 |