Table 2.

Cox regression univariate analysis assessing possible predictors of VTE in our cohort of RA patients.

Clinical variables	HR	95% CI	P-values
Age	1.07	1.01–1.14	.015
Gender	1.39	0.18–10.74	.750
Smoking habit	3.00	0.828–10.93	.094
BMI	1.37	1.04–1.81	.026
ACPA and/or RF	0.85	0.26–2.28	.790
Disease duration	1.13	1.03–1.20	.006
Joint surgery	0.05	0–34.17	.658
MTX	0.66	0.20–2.18	.500
Biologic DMARDs	0.85	0.24–2.95	.970
TNFi	0.93	0.30–2.89	.900
Non-TNFi	0.95	0.21–4.30	.947
Targeted synthetic DMARDs	0.48	0.00–89.69	.679

ACPA = anti-citrullinated protein antibody, BMI = body mass index, CI = confidence interval, DMARD = disease-modifying anti-rheumatic drug, HR = hazard ratio, MTX = methotrexate, RF = rheumatoid factor, TNFis = tumor necrosis factor.