Table 3

Multivariate Cox regression model for the risk of a time-dependent CV event among 232 patients

Risk factor

Coefficient (β)

SE

Wald χ²

Risk ratio

95% CI

Corrected p value

Statin therapy

-1.79

0.362

24.5

0.167

0.08–0.34

<0.0001

RA disease duration

-0.203

0.038

28.3

0.816

0.76–0.88

<0.0001

Backwards, stepwise Cox regression model, derived from significant univariate associations, including statin use, duration of arthritis and the dose of prednisone, the latter of which was not an independent predictor of outcome. CI, confidence interval; CV, cardiovascular; RA, rheumatoid arthritis.

Carroll et al. Arthritis Research & Therapy 2007 9:R39   doi:10.1186/ar2175