From: CT genotype of 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is protector factor of major depressive disorder in the Tunisian population: a case control study
Patient
Controls
Total
MTHFR1
N(CC)
43
37
80
χ 2 = 0.810/ddl = 2//p = 0.667
H(CT)
42
79
M(TT)
11
12
23
91