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. 2015 Dec 14;5:17971. doi: 10.1038/srep17971

Table 1. Main characteristics of studies on GSTM1 and GSTT1 polymorphisms and RCC included in the meta-analysis.

Study Year Country Sample size GSTM1
   GSTT1
Case
 Control
 Sample size Case
 Control
(case/control) Present Null Present Null (case/control) Present Null Present Null
Ahmad 2012 India 196/250 94 102 134 116 196/250 71 125 144 106
Salinas 2011 Spain 133/193 76 57 115 78 132/163 110 22 138 25
De Martino 2010 Austria 147/112 67 80 53 59 147/112 120 27 89 23
Wiesenhütter 2007 German 98/770 47 51 383 358 98/768 79 19 624 144
Moore 2007 Central and Eastern European 925/1247 431 424 611 555 861/1199 694 167 990 209
Buzio 2003 Italy 100/200 50 50 92 108 100/200 89 11 165 35
Sweeney 2000 American 126/505 63 63 250 255 126/505 90 36 411 94
Longuemaux 1999 French 173/211 83 88 94 116 171/210 146 25 170 40