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Table 2 Characteristics of the studies evaluating effects of the GSTT1-null genotype of on bladder carcinogen risk

From: Association of Glutathione S-transferase gene polymorphism with bladder Cancer susceptibility

Author, Year Country Ethnicity Source of controls Quality score Case Control
+ total + total
Brockmoller 1996 Germany Caucasian Hospital-based 8 66 308 374 78 295 373
Kempkes 1996 Germany Caucasian Population-based 7 20 93 113 31 139 170
Abdel-Rahman 1998 Egypt African Hospital-based 8 17 20 37 5 29 34
Katoh 1998 Japan Caucasian Hospital-based 9 46 66 112 59 53 112
Kim 1998 Korea Asian Hospital-based 7 18 49 67 29 38 67
Lee 1999 Korea Asian Hospital-based 7 93 65 158 66 65 131
Salagovic 1999 Slovakia Caucasian Hospital-based 6 21 55 76 42 206 248
Georgiou 2000 Greece Caucasian Hospital-based 6 5 84 89 16 131 147
Peluso 2000 Italy Caucasian Hospital-based 5 14 108 122 6 48 54
Kim 2000 Korea Asian Hospital-based 6 47 65 112 101 119 220
Steinhoff 2000 Germany Caucasian Hospital-based 7 20 115 135 17 110 127
Schnakenberg 2000 Germany Asian Hospital-based 6 28 129 157 48 175 223
Toruner 2001 Turkey Asian Hospital-based 8 24 97 121 21 100 121
Giannakopoulos 2002 Greece Caucasian Hospital-based 6 5 84 89 16 131 147
Lee 2002 Korea Asian Hospital-based 8 135 97 232 85 80 165
Ma 2002 China Asian Population-based 8 29 32 61 88 94 182
Kim 2002 Korea Asian Population-based 8 91 125 216 228 221 449
Gago-Dominguez 2003 USA Mix Population-based 8 50 146 196 34 142 176
Jong 2003 Korea Asian Hospital-based 9 68 58 126 113 91 204
Chen 2004 China Asian Population-based 8 32 30 62 51 30 81
Moore 2004 USA Mix Population-based 8 17 89 106 12 97 109
Hung 2004 France Caucasian Hospital-based 7 43 158 201 33 181 214
Srivastava 2004 India Asian Hospital-based 7 28 78 106 29 153 182
Sanyal 2004 Sweden Caucasian Population-based 8 66 204 270 12 110 122
Broberg 2005 Sweden Caucasian Population-based 9 7 54 61 22 132 154
Garcia-Closas 2005 Spain Caucasian Hospital-based 9 230 899 1129 248 873 1121
Saad 2005 UK Caucasian Population-based 8 26 46 72 14 67 81
Karagas 2005 USA Mix Population-based 9 53 83 136 301 458 759
Golka 2005 Dortmund Caucasian Hospital-based 8 30 106 136 38 125 163
Kim 2005 Korea Asian Hospital-based 7 71 82 153 89 64 153
Srivastava 2005 India Asian Population-based 10 28 78 106 79 291 370
Shao 2005 China Asian Population-based 7 204 201 405 195 194 389
Sobti 2005 India Asian Population-based 9 30 70 100 11 65 76
McGrath 2006 USA Mix Population-based 11 35 156 191 148 776 924
Ouerhani 2006 Tunisia African Population-based 6 26 36 62 35 44 79
Kogevinas 2006 Spain Caucasian Hospital-based 8 24 75 99 17 74 91
Cengiz 2007 Turkey Caucasian Hospital-based 6 18 33 51 11 42 53
Kellen 2007 Belgium Caucasian Population-based 8 30 164 194 61 319 380
Zhao 2007 USA Caucasian Hospital-based 8 103 520 623 115 519 634
Covolo 2008 Italy Caucasian Hospital-based 7 42 155 197 33 178 211
Yuan 2008 USA Mix Population-based 11 140 518 658 124 556 680
Song 2008 China Asian Hospital-based 7 71 37 108 58 54 112
Altayli 2009 Turkey Caucasian Hospital-based 7 31 104 135 9 119 128
Grando 2009 Brazil Mix Population-based 7 51 49 100 37 63 100
Song 2009 China Asian Hospital-based 11 110 98 208 105 107 212
Cantor 2010 Spain Caucasian Hospital-based 9 136 542 678 160 550 710
Moore 2011 USA Mix Hospital-based 10 210 794 1004 237 942 1179
Rouissi 2011 Tunisia African Population-based 7 30 95 125 38 87 125
Goerlitz 2011 Egypt African Hospital-based 9 147 470 617 156 464 620
Salinas-Sánchez 2011 Spain Caucasian Hospital-based 5 42 148 190 25 138 163
Lesseur 2012 New Hampshire Caucasian Hospital-based 9 106 556 662 143 780 923
Ovsiannikov 2012 Germany Caucasian Hospital-based 6 33 163 196 47 188 235
Henriquez-Hernondez 2012 Spain Caucasian Hospital-based 8 60 30 90 40 41 81
Berber 2013 Turkey Caucasian Hospital-based 7 31 83 114 16 98 114
Matic 2013 Serbia Caucasian Hospital-based 8 56 145 201 34 88 122
Safarinejad 2013 Iran Asian Hospital-based 10 35 131 166 69 263 332
Kang 2013 Korea Asian Hospital-based 9 64 46 110 128 92 220
Reszka 2014 Poland Caucasian Population-based 9 30 212 242 77 288 365
Ceylan 2015 Turkey Caucasian Hospital-based 8 19 46 65 9 61 70
Ali 2017 Pakistan Asian Population-based 11 34 166 200 26 174 200
Elhawary 2017 Saudi Arabia Asian Hospital-based 7 6 46 52 8 96 104