Table 3. Univariate linear regression analysis of independent variables (predictors) of atherosclerotic plaque progression in RA patients.

Predictor	Unstandardized Coefficients		Standardized Coefficients	t	Sig.	95.0% Confidence Interval for B
	B	Std. Error	beta			Lower Bound	Upper Bound
hsCRP, mg/l	.020	.005	.844	4.451	.002	.010	.030
ESR, mm/h	.013	.004	.789	3.401	.011	.004	.021
Daily N. of cig.	.025	.007	.838	3.434	.019	.006	.043
Pack-years	.011	.003	.892	4.411	.007	.005	.018