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. 2014 Oct 10;4:6578. doi: 10.1038/srep06578

Table 1. Characteristics of eligible studies.

Author Year Country Ethnicity Cancer Sources of control Genotyping method Cases Controls Case Control Phwe
GSTO1 polymorphism     CC CA AA CC CA AA  
Granja13 2005 Brazil mixed TC PB PCR-SSCP 93 173 74 17 2 146 19 8 <0.001
Bufalo21 2006 Brazil mixed TC PB PCR-RFLP 73 184 59 14 159 25  
Olsen9 2008 Denmark Caucasian BC PB PCR-RFLP 396 396 121 199 76 123 210 63 0.089
Lima-Jr16 2008 Brazil mixed PC HB PCR-SSCP 125 100 116 6 3 92 4 4 <0.001
Pongstaporn10 2009 Thailand Asian ALL HB PCR-RFLP 99 100 59 40 0 76 23 1 0.607
Wang11 2009 Taiwan Asian UC HB PCR-RFLP 520 520 368 135 17 356 153 11 0.243
Andonova15 2010 Germany Caucasian BC PB MALDI-TOF MS 1000 992 396 509 95 429 456 107 0.384
Chariyalertsak17 2009 Thailand Asian BC HB PCR-RFLP 101 151 80 20 1 117 33 1 0.414
Chung18 2011 Taiwan Asian UC HB PCR-RFLP 149 251 107 41 1 166 78 7 0.546
Beebe-Dimmer15 2012 USA Caucasian UC PB Taqman 212 266 97 98 17 123 113 30 0.601
Sanguansin20 2012 Thailand Asian HNSCC HB PCR-RFLP 300 299 231 67 2 234 62 3 0.619
Guzide ADA12 2013 Turkey Caucasian LC PB PCR-RFLP 172 214 82 77 13 104 87 23 0.456
Min-Che Tung29 2014 Taiwan Asian UC HB PCR-RFLP 300 233 230 70 150 79  
GSTO2 polymorphism     AA AG GG AA AG GG  
Morari22 2006 Brazil mixed OC PB PCR-RFLP 69 222 24 37 8 87 104 31 0.993
Leite23 2007 Brazil mixed SC PB PCR-RFLP 88 124 37 38 13 40 62 22 0.811
Masoudi24 2009 Iran Asian GC PB PCR-RFLP 67 134 33 29 5 54 61 19 0.791
Pongstaporn10 2009 Thailand Asian ALL HB PCR-RFLP 99 100 57 34 8 63 30 7 0.208
Wang11 2009 Taiwan Asian UC HB PCR-RFLP 520 520 298 175 47 294 195 31 0.859
Masoudi25 2010 Iran Asian BC PB PCR-RFLP 181 181 74 75 32 80 78 23 0.561
Andonov15 2010 Germany Caucasian BC PB MALDI-TOF MS 1004 997 425 456 123 442 453 102 0.371
Chariyalertsak17 2009 Thailand Asian BC HB PCR-RFLP 101 151 59 38 4 86 60 5 0.155
Chung15 2011 Taiwan Asian UC HB PCR-RFLP 149 251 88 59 2 134 104 13 0.207
Masoud26i 2011 Iran Asian CRC PB PCR-RFLP 63 126 30 25 8 52 55 19 0.482
Lesseur27 2012 USA Caucasian UC PB CIGG 658 928 255 321 82 398 439 91 0.057
Sanguansin20 2012 Thailand Asian HNSCC HB PCR-RFLP 300 299 170 112 18 171 109 19 0.771
Sohail28 2013 Pakistan Asian BC PB PCR-RFLP 100 102 0 10 90 7 28 67 0.105

PB: population-based; HB: hospital-based; Phwe: Hardy-Winberg equilibrium; TC: thyroid carcinoma; BC: breast cancer; PC: prostate carcinoma; ALL: acute lymphoblastic leukemia; UC: urothelial carcinoma; HNSCC: head and neck squamous cell carcinoma; LC: lung cancer; OC: ovarian carcinoma; SC: skin cancer; GC: gastric cancer CRC: colorectal cancer; CIGG: custom Illumina Golden Gate 96 SNP panel array.