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Table 1 Traditional risk factors in systemic sclerosis patients and healthy controls

From: Early atherosclerosis in systemic sclerosis and its relation to disease or traditional risk factors

Characteristic Patients (n = 49) Controls (n = 32) P value
Age, years 55.4 ± 11.6 50.9 ± 10.1 0.078
Male gender, number (percentage) 8 (16%) 3 (9.4%) 0.513
Body mass index, kg/m2 23.7 ± 2.9 24.0 ± 2.9 0.582
Smoking    
   Pack years for smokers, number (percentage) 3 (6%) 2 (6.5%) 1.000
   Median (range) 20 (1–48) 10 (6–14)  
Diabetes mellitus, number (percentage) 2 (4%) 0 0.523
Hypertension treated with antihypertensive agents, number (percentage) 12 (24%) 2 (6%) 0.120
Blood pressure, mm Hg    
   Systolic 120 (110–135) 120 (110–125) 0.409
   Diastolic 75 (70–80) 75 (70–80) 0.379
Cholesterol, mmol/L    
   Total 5.22 ± 1.00 5.53 ± 1.06 0.217
   Low-density lipoprotein 3.02 ± 0.85 3.06 ± 1.08 0.871
   High-density lipoprotein 1.40 (1.23–1.80) 1.68 (1.48–1.89) 0.027
Triglycerides, mmol/L 1.36 (1.16–2.14) 1.17 (0.77–1.67) 0.030
Lipid-lowering drugs, number (percentage) 7 (14%) 0 0.038
   Simvastatin, number (mean dose in milligrams) 4 (20) 0  
   Atorvastatin, number (mean dose in milligrams) 2 (25) 0  
   Rosuvastatin, number (mean dose in milligrams) 1 (10) 0  
Family history of cardiovascular disease, number (percentage) 10 (20%) 5 (16%) 0.603
Cardiovascular history, number (percentage) 4 (8%) 0 0.149
   Cardiovascular 1   
   Cerebrovascular 1   
   Peripheral vascular disease 2   
C-reactive protein, mg/L 3.5 (1.6–7.0) 0.8 (0.3–2.0) < 0.001
  1. Unless stated otherwise, data are expressed as mean ± standard deviation when normally distributed and as median (interquartile range) when non-normally distributed.