MTHFR C677T Controls(n=137)  CRC(n=78)  P OR MTHFR A1298C Controls(n=78)  CRC(n=72)  P  OR
Drinking habit; no         Drinking habit; no        
CC*  69  20   NS   AA*  22  34  0.009 0.32(0.12-0.83)
CT+TT  46  23     AC+CC  30  9    
           Yes        
 Yes CC   9   12   NS   AA  18  13 0.09 0.47(0.17-1.25)
CT+TT  13  23  110-6  6.10(2.43-15.55) AC+CC  8  16 NS  
Milk consumption <3/week         Milk consumption <3/week        
CC* 52  16  0.002  3.14(1.37-7.26) AA*  24  35 0.04 0.43(0.17-1.06)
CT+TT 29  28     NS NS   AC+CC  24  15    
      ≥3/week        
≥3/week CC 26  16 AA  16 12 NS  
CT+TT 30  18 AC+CC  14  10 NS  
Cheese<2/week         Cheese<2/week        
CC* 49  27  NS   AA*  20 31 NS  
CT+TT 30  16     AC+CC  23 17    
          ≥2/week        
≥2/week CC 29  5  0.02  0.31(0.09-0.98) AA  20 16 NS  
CT+TT 29  30  NS   AC+CC  15 8 0.03 0.34(0.11-1.07)
Yogurt<2/week         Yogurt<2/week        
CC* 45  22 0.0008 3.94(1.61-9.80) AA*  23 30 NS  
CT+TT 14  27 AC+CC  18 12    
          ≥2/week        
≥2/week CC 33  10  NS   AA  17 17 NS  
 CT+TT 45  19  NS   AC+CC  20 13 NS  
P was calculated using CC genotype for MTHFR677 as reference, and AA genotype for MTHFR1298 as reference
Table 8: Interaction between MTHFR polymorphisms with drinking habit and dairy product and colorectal cancer.