Table 1 Baseline patient characteristics
CharacteristicTotal n = 46
Demographics:
Age (years)51 (14)
Female (%)37 (80)
BMI (kg/m2)27.0 (5.9)
Disease status:
Disease duration (months)60 (36 to 142)
Erosive disease (%)31 (67)
IgM-RF+(%)30 (65)
Anti-CCP+(%)32 (70)
DAS285.4 (1.1)
ESR (mm/h)19 (11 to 34)
CRP (mg/litre)7 (4 to 17)
Postmenopausal women (%)19 (51)
Drug treatments:
Previous DMARDs4.1 (2.0)
Methotrexate (mg/week)19.1 (6.9)
Prednisone use (%)13 (28)
Prednisone dose (mg/day)7.4 (2.3)
Bisphosphonate use (%)8 (17)
Calcium use (%)13 (28)
Vitamin D use (%)12 (26)
Bone mineral density:
Lumbar spine
    BMD (g/cm2)0.96 (0.15)
    T-score (SD)−0.82 (1.32)
    Z-score (SD)0.04 (1.23)
Femoral neck
    BMD (g/cm2)0.80 (0.16)
    T-score (SD)−0.75 (1.32)
    Z-score (SD)0.19 (1.19)
  • Mean values (SD), median and interquartile range (IQR) or percentages are shown.

  • BMD, bone mineral density; BMI, body mass index; CCP, cyclic citrullinated peptide; CRP, C-reactive protein; DAS28, 28-joint Disease Activity Score; DMARD, disease-modifying antirheumatic drug; ESR, erythrocyte sedimentation rate; RF, rheumatoid factor.