Table 6

Logistic regression, adjustment for confounders related with antimalarial treatment (dependent variable, major infection)

Variable

Odds ratio

95% confidence interval

Lung involvement at study point

3.11

0.79 to 12.31

Prednisone dose (mg/day)

1.10

1.04 to 1.17

Antimalarials

0.07

0.03 to 0.15

Age at diagnosis

0.99

0.97 to 1.01

Leukopenia ever

1.99

0.82 to 4.82

Nephritis ever

1.61

0.72 to 3.64

Mycophenolate at study point

1.52

0.15 to 15.40

SDI = 0

Reference

SDI = 1 to 2

0.42

0.18 to 1.00

SDI > 2

0.22

0.03 to 1.65

SDI, Systemic Lupus International Collaborating Clinics Damage Index.

Ruiz-Irastorza et al. Arthritis Research & Therapy 2009 11:R109   doi:10.1186/ar2764