Table 3.

Distribution of the MTHFR C677T polymorphism across different Hcy levels groups.

Genotyping	HHcy （n = 129）	Non-Hcy （n = 305）	OR	95%CI	p_value
Genotype
TT	89	7	2.525	1.111–5.739	0.023
CT	170	36	–	–	–
CC	112	20	0.930	0.523–1.652	0.804
Allelel
C	348	50	1.343	0.914–1.973	0.133
T	394	76	–	–	–

Notes: HHcy: hyperhomocysteinemia; Non-Hcy: nornal-homocysteinemia.OR: odds ratio; 95%CI: 95%confidence interval.