|  |  |  | Case | Control |  |  |
---|
Study | Population location | Year | Age | TT | TC | CC | TT | CT | CC | OR | 95%CI |
---|
Li, H[19] | Shanghai | 2009 | 3-12 | 110 | 58 | 24 | 78 | 90 | 24 | 1.00 | 0.55-1.83 |
Wang, L[59] | Hubei | 2003 | 2-16 | 43 | 54 | 13 | 35 | 46 | 11 | 0.99 | 0.42-2.32 |
Zhao, K S [63] | Jilin | 2004 | 5.6 ± 3.1 | 46 | 69 | 11 | 40 | 38 | 9 | 0.83 | 0.33-2.09 |