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Table 1 Characteristics of the patients

From: Bone mineral density by digital X-ray radiogrammetry is strongly decreased and associated with joint destruction in long-standing Rheumatoid Arthritis: a cross-sectional study

  n Characteristics
Age, years 75 57.6 ± 5.2
Height, cm 75 163.2 ± 6.4
Weight, kg 75 67.2 ± 12.7
Disease duration, years 75 14 (7, 20)
Disease modifying anti rheumatic drugs ( n, %) 75 64, 85%
Glucocorticosteroid treatment ( n, %) 75 18, 24%
Health Assessment Questionnaire, score 75 1.00 (0.38, 1.50)
Disease Activity Score 28, score 74 5.3 ± 1.0
Haemoglobin,(g/L 75 129 ± 12
Erythrocyte sedimentation rate, mm/h 74 28 ± 17
C-reactive protein, mg/L 74 17 ± 17
Mean Larsen score, score 72 1.21 ± 0.96
Mean Larsen score, hands, score 72 1.18 ± 1.02
DXA-BMD, forearm, g/cm2 70 0.47 ± 0.10
DXA-BMD, forearm, Z-score 70 -0.59 ± 1.94
DXA-BMD, total hip, g/cm2 74 0.78 ± 0.15
DXA-BMD, total hip, Z-score 74 -0.69 ± 1.21
DXA-BMD, lumbar spine, g/cm2 74 0.86 ± 0.13
DXA-BMD, lumbar spine, Z-score 74 -0.44 ± 1.14
DXR-BMD, left hand, g/cm2 72 0.45 ± 0.08
DXR-BMD, right hand, g/cm2 66 0.46 ± 0.09
DXR-BMD, mean values, g/cm2 63 0.46 ± 0.08
DXR-BMD, mean, left or right hand, g/cm2 75 0.45 ± 0.09
CTX-I, ng/mL 68 0.61 ± 0.36
ICTP, ng/mL 66 4.9 ± 1.9
  1. Demographic variables, clinical and laboratory measurements of disease activity, radiographic score (Larsen), bone mineral density measurements by dual energy x-ray absorptiometry and by digital x-ray radiogrammetry in postmenopasusal women with RA.
  2. Values are means ± SD or median (IQR) when not stated otherwise, n = number of patients with available data.
  3. CTX-I = C-terminal telopeptide fragments of type I collagen, ICTP = C-terminal telopeptide of type I collagen
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