Table 4. Association analysis of type 2 diabetes mellitus (T2DM) using combinations of polymorphisms (ACE I/D and MTHFR C667T).

Combination	T2DM (n = 45)	Controls (n = 74)	OR (95% IC)	p-value
DD/CC	8 (17.8)	15 (20.3)	0.85 (0.33-2.20)	0.74
DD/CT	12 (26.7)	18 (24.3)	1.13 (0.48-2.64)	0.77
DD/TT	2 (4.4)	5 (6.8)	0.64 (0.12–3.45)	0.63
ID/CC	7 (15.6)	9 (12.2)	1.31 (0.45-3.86)	0.59
ID/CT	7 (15.6)	15 (20.3)	0.72 (0.27-1.94)	0.52
ID/TT	3 (8.8)	3 (3.5)	2.46 (0.51-13.81)	0.35
II/CC	1 (2.2)	5 (6.8)	0.31 (0.03-2.77)	0.41
II/CT	2 (4.5)	3 (4.0)	1.14 (0.18-7.12)	0.89
II/TT	3 (36.2)	1 (39.0)	5.2 (0.53-51.74)	0.15

95% CI: 95% confidence interval.