Table 4.

Univariate analysis of cofounding factors.

Variable	Particular	Diseased group	Nondiseased group	95% CI	P value
NO	<30.0 μmol/L	54.34	6.2	38.18–42.67	<0.0001
ADMA	>0.60 μmol/L	0.81	0.63	0.62–1.16	<0.0001