Table 2 Characteristics of eligible studies in this meta-analysis
First author (year) | Country | Ethnicity | Genotyping methods | Source of controls | Sample size (case/control) | Matching variables | Prostate cancer diagnosis | QC when genotyping | PI | HWE (P value) | Quality scores | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|  |  |  |  |  |  |  |  |  | −308G/A | −238G/A |  | |
Ribeiro (2012) | Portugal | Caucasia | TaqMan | HB | 449/557 | Age | HC | No | −308G/A | 0.155 | - | 10 |
Berhane (2012) | India (N) | Asia | ARMS-PCR | HB | 150/150 | Age | HC | No | −308G/A | 0.662 | - | 10 |
Wang (2009) | America (W) | mixed | TaqMan | PB | 251/250 | Age, sex,ethnicity | HC | No | −308G/A | 0.529 | - | 12 |
Moore (2009) | Finland (W) | mixed | TaqMan | PB | 949/857 | Age, sex | HC | Yes | −308G/A | 0.231 | - | 14 |
Kesarwani (2009) | India (E) | Asia | PCR-RFLP | PB | 197/256 | Age, sex, ethnicity | HC | Yes | −308G/A | 0.115 | - | 13 |
Zabaleta 1 (2008) | America (W) | Caucasia | TaqMan | HB | 950/785 | Ethnicity | HC | Yes | −308G/A,-238G/A | 0.505 | 0.295 | 10 |
Zabaleta 2 (2008) | America (W) | African-American | TaqMan | HB | 131/256 | Ethnicity | HC | Yes | −308G/A,-239G/A | 0.959 | 0.006 | 8 |
Sáenz-López (2008) | Spain | Caucasia | TaqMa | HV | 296/310 | Ethnicity | HC | No | −308G/A | 0.715 | - | 9 |
Danforth 1 (2008) | America (W) | Caucasia | TaqMan | PB | 1155/1389 | Age | HC | Yes | −308G/A | 0.795 | - | 14 |
Danforth 2 (2008) | America (W) | Caucasia | TaqMan | PB | 2225/2251 | Age | HC | Yes | −308G/A,-239G/A | 0.217 | 0.737 | 14 |
Ge (2007) | China | Asia | TaqMan | HB | 490/490 | Age | HC + PC | No | −308G/A | 0.609 | 0.462 | 11 |
Wu (2004) | China | Asia | PCR | HV | 96/126 | Sex | HC | No | −308G/A,-239G/A | 0.883 | - | 7 |
McCarron (2002) | UK | Caucasia | PCR | HB | 239/220 | Ethnicity | HC | No | −308G/A | 0.023 | - | 7 |
OH (2000) | America | Caucasia | PCR | HB | 146/244 | Ethnicity | PC | Yes | −308G/A,-239G/A | 0.554 | 0.091 | 9 |