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Table 4 Correlation of carotid and femoral artery intima-media thickness with traditional and nontraditional risk factors for atherosclerosis a

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

SSc (n = 90)

SLE (n = 100)

Mean CCA IMT

Mean CFA IMT

Mean CCA IMT

Mean CFA IMT

Correlation

P value

Correlation

P value

Correlation

P value

Correlation

P value

Age (years)

r = 0.682

<0.001

r = 0.565

<0.001

r = 0.726

<0.001

r = 0.560

<0.001

Age at diagnosis (years)

r = 0.652

<0.001

r = 0.586

<0.001

r = 0.670

<0.001

r = 0.437

<0.001

Disease duration (months)

r = -0.030

0.782

r = -0.109

0.308

r = 0.094

0.357

r = 0.217

0.032

Male sex

r φ = 0.261

0.013

r φ =0.341

0.001

r φ = 0.268

0.007

r φ = 0.208

0.039

Postmenopausal status

r = 0.546

0.001

r = 0.375

0.001

r = 0.400

<0.001

r = 0.373

<0.001

Body mass index

r = 0.128

0.241

r = 0.197

0.070

r = 0.258

0.012

r = 0.294

0.004

Systolic blood pressure (mmHg)

r = 0.303

0.007

r = 0.332

0.003

r = 0.346

0.001

r = 0.171

0.124

Glomerular filtration rate

r = -0.316

0.003

r = -0.489

<0.001

r = -0.296

0.003

r = -0.277

0.006

Nicotine pack-years

r = 0.022

0.839

r = 0.320

0.002

r = 0.082

0.424

r = -0.058

0.570

Coronary heart disease

r φ = 0.160

0.133

r φ = 0.379

<0.001

r φ = 0.265

0.008

r φ = 0.160

0.115

mRSS

r = 0.225

0.036

r = -0.021

0.843

–

–

–

–

SCL70 antibody

r φ = -0.117

0.270

r φ = -0.209

0.048

–

–

–

–

Centromere antibody

r φ = 0.165

0.119

r φ = 0.255

0.015

–

–

–

–

SLEDAI

–

–

–

–

r = -0.166

0.115

r = -0.057

0.591

SLICC

–

–

–

–

r = 0.208

0.049

r = 0.117

0.271

dsDNA antibody

–

–

–

–

r φ = -0.188

0.063

r φ = -0.197

0.051

Nucleosomes antibody

–

–

–

–

r φ = -0.231

0.021

r φ = -0.123

0.224

  1. CCA, common carotid artery; CFA, common femoral artery; dsDNA, double-stranded DNA; IMT, intima-media thickness; mRSS, modified Rodnan Skin Score; SLE, systemic lupus erythematosus; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index; SLICC, Systemic Lupus International Collaborating Clinics damage index; SSc, systemic sclerosis.
  2. aOnly variables suggested for multivariate linear regression analysis are reported; complete report available in Additional file 1.