Table 1

Characteristics of 651 incident patients with RA (1988–2007, Olmsted County, Minnesota)

VariableValue
Age at RA incidence (years (mean±SD))55.8±15.7
Length of follow-up (years (mean±SD))7.8±5.2
Female (n (%))446 (69)
RF positive, ever (n (%))433 (67)
% Tested for RF, ever99
Abnormal ESR, ever (n (%)) (>29 mm/h for women and >22 mm/h for men)405 (62)
Abnormal CRP, ever (n (%)) (>8 mg/l)316 (67)
Family history of IHD150 (23)
Smoking at RA incidence (n (%))
 Current120 (18)
 Former229 (35)
Hypertension, ever (n (%))562 (86)
Obesity (BMI ≥30 kg/m2), ever (n (%))323 (50)
Diabetes mellitus, ever (n (%))116 (18)
Abnormal lipid measures, ever (n (%))
 According to the ATPIII guidelines
  TCh (≥6.2 mmol/l)234 (41)
  LDL (≥4.1 mmol/l)195 (35)
  HDL (<1 mmol/l)213 (38)
  TG (≥2.3 mmol/l)208 (37)
 According to the ESC guidelines
  TCh (≥5 mmol/l)436 (77)
  LDL (≥3 mmol/l)425 (76)
  HDL (<1 mmol/l)213 (38)
  TG (≥1.7 mmol/l)313 (57)
Lipid-lowering drug use, ever (n (%))209 (32)
Antirheumatic drug use, ever (n (%))
 Methotrexate404 (62)
 Hydroxychloroquine400 (61)
 Other DMARDs173 (27)
 Biological response modifiers125 (19)
 Corticosteroids519 (80)
  • Abnormal lipid percentages were based on 567 patients with lipid measures. ATPIII, Adult Treatment Panel III; BMI, body mass index; CRP, C-reactive protein; DMARD, disease-modifying antirheumatic drug; ESC, European Society of Cardiology; ESR, erythrocyte sedimentation rate; HDL, high-density lipoprotein cholesterol; IHD, ischaemic heart disease; LDL, low-density lipoprotein cholesterol; RA, rheumatoid arthritis; RF, rheumatoid factor; TCh, total cholesterol; TG, triglycerides.