Table 4. Sensitive analysis about MTHFR C677T and A1298C Polymorphism and VTE susceptibility.

Comparison	Effect model	OR (95%CI)
MTHFR C677T
CC+CT vs TT	Random	0.68 (0.56, 0.83)
	Fixed	0.80 (0.73, 0.87)
CC vs CT+TT	Random	0.82 (0.74, 0.93)
	Fixed	0.92 (0.87, 0.98)
CC vs TT	Random	0.65 (0.52, 0.81)
	Fixed	0.80 (0.73, 0.88)
CT vs TT	Random	0.73 (0.60, 0.89)
	Fixed	0.83 (0.75, 0.91)
C vs T	Random	0.80 (0.71, 0.90)
	Fixed	0.90 (0.87, 0.95)
MTHFR A1298C
AA+AC vs CC	Random	0.97 (0.71, 1.32)
	Fixed	0.99 (0.74, 1.33)
AA vs AC+CC	Random	0.91 (0.77, 1.08)
	Fixed	0.91 (0.77, 1.08)
AA vs CC	Random	0.90 (0.66, 1.23)
	Fixed	0.91 (0.67, 1.25)
AC vs CC	Random	1.01 (0.67, 1.52)
	Fixed	1.05 (0.77, 1.43)
A vs C	Random	0.95 (0.83, 1.07)
	Fixed	0.95 (0.83, 1.07)

OR, odds ratio.