Table 2. Linear Model of Plasma Homoarginine (µmol/L)*.

	Coefficient	95% CI	Beta†	P value
L-arginine (µmol/L)*	0.355	0.140, 0.569	0.219	0.001
Proteinuria (g/day)*	−0.078	−0.121, −0.035	−0.282	<0.001
Serum Albumin(g/dL)	0.121	0.003, 0.241	0.154	0.045
C-Reactive Protein(mg/dL)*	−0.072	−0.132, −0.012	−0.178	0.018
Homocysteine(µmol/L)	0.003	−0.001, 0.006	0.121	0.074
Body Mass Index(Kg/m2)	0.028	0.016, 0.040	0.327	<0.001
Age (years)	−0.005	−0.011, −0.001	−0.152	0.039
Male (vs. female) sex	0.367	0.243, 0.491		<0.001
Presence of diabetes	0.165	0.026, 0.303		0.020
Peripheral vasculardisease	−0.148	−0.279, −0.017		0.027

Legend: (*) indicates variables that were log-transformed; the regression coefficients estimate the average change in the log values of the response (homo-arginine) per unit change in the predictor (log-unit change [2.72 units on the natural scale µmol/L] if log-transformed); 95% CI indicates 95% Confidence Intervals; Beta† indicates the standardized regression coefficient (not meaningful for the binary variables sex, diabetes and vascular disease). Model R²∶0.366; all variance inflating factors <1.1.