Ethnicity

Country Author Year                   Cases/Controls for C677T   Cases/Controls for A1298C Ref
    N   CC   CT   TT   N AA AC CC
        Caucasian USA Hobbs et al 2000 157/140 51/67 84/59 22/14         14
Italy Stuppia et al. 2002 64/112 20/27 32/62 12/23 - - - - 24
Ireland O’Leary 2002 192/41 18/90 21/84 2/18         25
Turkey Bodurologu 2004 152/91 86/58 55/30 11/3 152/91 44/21 97/10 11/0 26
Italy Scala et al. 2006 94/264 31/74 39/125 24/57 94/264 38/128 38/108 17/25 27
Egypt Meguid et al. 2008 42/48 20/33 17/12 5/3 42/48 8/18 20/29 14/1 28
Italy Coppedde et al. 2009 94/113 25/40 52/55 17/18 69/101 37/46 29/48 6/7 8
Croatia Vranekovic et al. 2010 111/141 49/66 49/64 13/11 111/141 48/63 56/68 7/10 -
Jordan Sadiq et al. 2011 53/29 23/23 27/5 3/1 53/29 24/10 29/18 0/1 30
Croatia Bozovic et al. 2011 112/221 46/101 55/97 11/23 112/221 55/101 52/98 5/22 29
  Brazilian Brazil Brandalize et al. 2009 239/197 94/86 113/93 32/18 239/197 143/113 84/76 12/8 31
Brazil Santos et al. 2008 103/108 51/49 43/47 9/12 103/108 58/57 40/49 5/2 32
     Asian India Rai et al. 2006 149/165 97/124 40/39 12/2 89/70 28/28 39/37 22/5 33
India Kohli et al. 2008 103/109 74/71 29/32 6/0         34
India Cyril et al. 2009 36/60 33/60 3/0 0 36/60 14/26 19/21 3/13 35
Present study Ambreen et al. 2014 233/242 183/169 40/44 10/29 304/302 216/212 71/75 17/15 -
Table 1: Characteristics of studies included in the meta- analysis for MTHFR gene polymorphisms C667T and A1298°C [14-23,26-30].