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Table 9 Multivariate Cox regression analysis of predictors of incident cardiovascular events during follow-up 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

Adjusted hazard ratio (95% CI)

P value

Cox model 1 – SSc and SLE ( n = 129)a

   

Coronary heart disease

2.326

10.24 (3.04 to 34.55)

<0.001

Male sex

2.172

8.78 (2.73 to 28.19)

<0.001

Carotid and femoral artery plaque

   

 Group 3 (CP and FP) versus group 1 (no plaque)

1.812

6.13 (1.27 to 29.53)

0.024

 Group 2 (CP or FP) versus group 1 (no plaque)

0.092

1.10 (0.13 to 9.08)

0.932

Cox model 2 – SSc and SLE ( n = 129)b

   

Coronary heart disease

2.322

10.19 (3.04 to 34.17)

<0.001

Male sex

2.172

8.78 (2.73 to 28.19)

<0.001

Carotid and femoral artery plaque

   

 Group 3 (CP and FP) versus all other (CP or FP or no plaque)

1.778

5.92 (1.55 to 22.67)

0.009

  1. Group 1, patients without carotid or femoral artery plaque; group 2, patients with only carotid or only femoral artery plaque; group 3, patients with coexistent carotid and femoral artery plaque. CI, confidence interval; CP, carotid artery plaque; FP, femoral artery plaque; SLE, systemic lupus erythematosus; SSC, systemic sclerosis. aZero observations excluded from model because of missing values. Events per variable: 19/4 = 4.75. bZero observations excluded from model because of missing values. Events per variable: 19/3 = 6.33.
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Arthritis Research & Therapy

ISSN: 1478-6362

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