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Table 1 Characteristics of eligible studies

From: Role of vitamin D receptor gene Cdx2 and Apa1 polymorphisms in prostate cancer susceptibility: a meta-analysis

First author Year Country Ethnicity Total sample size (case/control) Genotyping method Source of control Study Polymorphisms P for HWE
Gilbert [18] 2015 UK Caucasian 951/898 Taqman PB NCC Cdx2 0.96
     950/890 Taqman PB NCC ApaI 0.09
Jingwi [19] 2015 USA African American 446/379 TaqMan PB CC Apa1 0.89
Yousaf [43] 2014 Pakistan Asian 47/134 PCR-RFLP PB CC Apa1 <0.0001
Jin Oh [41] 2014 Korean Asian 272/173 PCR-RFLP HB CC Cdx2
Rowland (A) [56] 2012 USA African American 414/223 TaqMan PB CC Cdx-2 0.07
    Caucasian 1117/795 TaqMan PB CC Cdx-2 0.55
Bai [73] 2009 China Asian 122/130 PCR-RFLP HB CC ApaI 0.21
Onen [28] 2008 Turkey Caucasian 133/157 PCR-RFLP HB CC Apa1 0.41
Torkko [27] 2008 USA Hispanic White 141/273 TaqMan PB CC Cdx-2 0.05
    Caucasian 444/488 TaqMan PB CC Cdx-2 0.99
Mikhak [26] 2007 USA Caucasian 688/689 TaqMan PB CC Cdx-2 0.15
Chaimuangraj [74] 2006 Thailand Asian 28/74 PCR-RFLP HB CC Apa1 0.88
Cicek [23] 2006 USA Caucasian 439/479 TaqMan PB CC Cdx2 0.26
     439/478 TaqMan PB CC Apa1 0.25
John [24] 2005 USA Caucasian 417/435 TaqMan PB CC Cdx-2 0.75
Huang [15] 2004 Taiwan Asian 160/205 PCR-RFLP HB CC Apa1 0.03
Oakley-Girvan [25] 2004 USA African American 113/121 PCR-RFLP PB CC Apa1 0.16
    Caucasian 232/171 PCR-RFLP PB CC Apa1 0.19
Maistro [42] 2004 Brazil mixed 165/200 PCR-RFLP PB CC Apa1
Bodiwala [22] 2004 UK Caucasian 368/243 PCR-RFLP HB CC Cdx-2 0.21
Suzuki [16] 2003 Japan Asian 81/105 PCR-RFLP PB CC Apa1 0.007
Habuchi [21] 2000 Japan Asian 222/337 PCR-RFLP HB CC Apa1 0.96