Table 1 Characteristics of studies included in the meta-analysis
Study (author, year) | Design | Study period | Population (country) | Genotyping method | No. of cases | No. of controls |
|---|---|---|---|---|---|---|
Nakata 1997 | HCC | 1992-1995 | Asians (Japan) | PCR | 38 | 38 |
McCarron 1998 | HCC | DNR | Caucasians (United Kingdom) | PCR | 71 | 406 |
Garcia 1999 | PCC | DNR | Caucasians (Portugal) | PCR-RFLP | 48 | 173 |
Kokubo 2000 | PCC | 1997-1999 | Asians (Japan) | PCR-RFLP | 84 | 1126 |
Catto 2000 | HCC | 1997 | Caucasians (United Kingdom) | PCR | 60 | 289 |
Chowdhury 2001 | HCC | 1998-1999 | Asians (Japan) | PCR-RFLP | 80 | 190 |
Woo 2002 | PCC | 1997-2000 | Caucasians (USA) | PCR | 188 | 366 |
Woo 2005 | HCC | 1997-2002 | Caucasians (USA) | TaqMan | 172 | 339 |
Chen 2009 | HCC | DNR | Asians (China) | PCR | 217 | 280 |
Zhang 2012 | HCC | 2008-2010 | Asians (China) | PCR-RFLP | 180 | 180 |
Misra 2012 | HCC | DNR | Asians (India) | PCR | 100 | 188 |