Table 4

Baseline predictors of the first ever cardiovascular event, multivariable-adjusted Cox regression

Hazard Ratio

Confidence interval

P

Age*

2.39

1.71 to 3.32

< 0.0001

Thrombocytopenia

0.35

0.08 to 0.77

0.005

Any aPL

4.23

1.56 to 14.83

0.003

von Willebrand factor†

1.97

1.16 to 3.33

0.01

Calculations were done using multivariable-adjusted Cox regression. *For age hazard ratio is calculated per 10 years (HR/10 years), for von Willebrand factor hazard ratio is given as risk per standard deviation, †calculations were done on log transformed values.

Gustafsson et al. Arthritis Research & Therapy 2009 11:R186   doi:10.1186/ar2878