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Table 7 Multivariate logistic regression analysis of predictors of atherosclerotic plaque in systemic sclerosis and systemic lupus erythematosus patients

From: Atherosclerotic plaques occur in absence of intima-media thickening in both systemic sclerosis and systemic lupus erythematosus: a duplexsonography study of carotid and femoral arteries and follow-up for cardiovascular events

Variable

Beta coefficient

Odds ratio (95% CI)

P value

Systemic sclerosis ( n = 85)a

   

Age (per 5 years)

0.904

2.47 (1.61 to 3.78)

<0.001

Nicotine use (per 5 pack-years)

0.554

1.74 (1.13 to 2.68)

0.012

Prednisolone intake (per 5 mg/day over 5 years)

0.940

2.56 (1.09 to 6.04)

0.032

Systemic lupus erythematosus ( n = 98)b

   

Age (per 5 years)

0.824

2.28 (1.61 to 3.22)

<0.001

Nicotine use (per 5 pack-years)

0.313

1.37 (1.05 to 1.78)

0.021

ssDNA antibody positive

-1.613

0.20 (0.05 to 0.83)

0.026

Duration of azathioprine use (per 5 years)

0.947

2.58 (0.93 to 7.13)

0.068

  1. CI, confidence interval; ssDNA, single-stranded DNA.
  2. aFive observations excluded from model because of missing values. Events per variable: 27/3 = 9. Constant = -10.435. Nagelkerke R2 = 65.6%. Hosmer–Lemeshow test P = 0.147. bTwo observations excluded from model because of missing values. Events per variable: 49/4 = 12.25. Constant = -8.507. Nagelkerke R2 = 65.2%. Hosmer–Lemeshow test P = 0.914.
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Arthritis Research & Therapy

ISSN: 1478-6362

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