Table 2

Effect of disease duration on the risk of cardiovascular disease; results of the Cox proportional hazards model with disease duration until event or censoring as the time variable

Variable	Estimate	SE	Exp (B)	p Value	95% CI
Variable	Estimate	SE	Exp (B)	p Value	Lower	Upper
Sex (male)	0.618	0.173	1.856	<0.001	1.322	2.604
Age (years)	0.049	0.008	1.051	<0.001	1.035	1.067
Smoking (Y/N)	0.424	0.174	1.528	0.015	1.087	2.149
BMI (weight (kg)/height (m)²)	0.065	0.018	1.067	<0.001	1.030	1.105
HDL-c (mmol/L)	−0.664	0.211	0.515	0.002	0.340	0.912
Diabetes (Y/N)	1.050	0.312	2.857	0.001	1.549	5.268
Time-averaged DAS28	0.430	0.081	1.537	<0.001	1.312	1.802
Biological ever (Y/N)	−0.538	0.227	0.584	0.018	0.374	0.912
MTX ever	−0.336	0.187	0.715	0.072	0.496	1.031

Cox proportional hazards regression model with disease duration until event or censoring as the time variable. Corrected for the confounders shown.
BMI, body mass index; DAS28, 28 joint disease activity score; HDL-c, high-density lipoprotein cholesterol; MTX, methotrexate.