Table 1.

Characteristics in 34 patients with rheumatoid arthritis.

Demographic characteristics
  Age at time of study, yrs57 (46–65)
  Age at disease onset, yrs42 (37–55)
  Female sex73.5
Cardiovascular risk factors
  Current smoking8.8
  Body mass index, kg/m224.1 (22.6–28.9)
   Systolic blood pressure, mm Hg120 (100–130)
   Diastolic blood pressure, mm Hg75 (70–80)
   Total cholesterol, mg/dl198 (171–212)
   HDL cholesterol, mg/dl62 (56–72)
   LDL cholesterol, mg/dl106.5 (90–122)
   Triglycerides, mmol/l102 (87–121)
   Glucose, mg/dl88 (78–97)
   Insulin, μU/ml13.0 (8.6–19.3)
   HOMA-IR, μU.mmol/ml.l2.9 (1.9–4.2)
   Framingham score2 (1–5)
Cardiovascular agents
   Antihypertensives23.5
   Statins14.7
   Glucose lowering agents2.9
RA characteristics
   Disease duration, years12 (5–16)
  Rheumatoid factor–positive91.2
  Disease activity score in 28 joints4.3 (3.3–5.1)
  Tender joints, n3 (1–6)
  Swollen joints, n3 (2–7)
  VAS patient disease activity, mm40 (25–50)
  Cumulative prednisone use, g27.5 (10.6–48.3)
Systemic inflammation
  Erythrocyte sedimentation rate, mm/hour27 (14–39)
  C-reactive protein, mg/l5.5 (4.0–23.4)
Adipokines
  Adiponectin, ng/ml15,683 (10,830–26,180)
  Resistin, ng/ml18.8 (14.8–26.8)
  Leptin, ng/ml10.7 (5.3–19.4)
Ghrelin, pg/ml861.2 (700.5–979.9)
Endothelial activation molecules
   E-selectin at time 0 min, ng/ml46.5 (33.5–67.4)
  E-selectin at time 120 min, ng/ml44.7 (28.0–66.2)
  P-selectin at time 0 min, ng/ml217.7 (133.1–315.5)
  P-selectin at time 120 min, ng/ml175.0 (96.9–248.1)
  VCAM-1 at time 0 min, ng/ml1015.5 (882.0–1317.0)
  VCAM-1 at time 120 min, ng/ml1009.5 (842.0–1230.0)
  ICAM-1 at time 0 min, ng/ml351.0 (288.4–409.9)
  ICAM-1 at time 120 min, ng/ml329.2 (257.3–380.4)
  ICAM-3 at time 0 min, ng/ml53.9 (48.6–65.2)
  ICAM-3 at time 120 min, ng/ml51.0 (42.8–62.1)
Carotid atherosclerosis, n = 27
  Intima-media thickness, mm0.82 (0.59–1.02)
  Plaque40.7
OPG at time 0 min, pmol/l4.8 (2.8–6.5)
OPG at time 120 min, pmol/l4.4 (2.9–6.1)
  • Continuous and categorical variables are expressed as median (interquartile range) and proportions, respectively. HDL: high-density lipoprotein; LDL: low-density lipoprotein; RA: rheumatoid arthritis; HOMA-IR: homeostasis model of insulin resistance; VAS: visual analog scale; VCAM: vascular cell adhesion molecule; ICAM: intercellular adhesion molecule; OPG: osteoprotegerin.