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Table 1 Baseline Demographics: Rheumatoid Arthritis vs Non-Rheumatoid Arthritis Participants (n = 60)

From: Micro-structural bone changes in early rheumatoid arthritis persist over 1-year despite use of disease modifying anti-rheumatic drug therapy

Domain Parameter RA (n = 30) NON-RA (n = 30)
Age Age in Years [mean (SD), min-max] 53.3 (13.7), 21–74 51.6 (13.6), 23–70
Sex Sex [# (%) - Male, Female] 6 (20%), 24 (80%) 6 (20%), 24 (80%)
Body Mass Index (BMI) BMI Female [mean (SD), min-max] 28.3 (7.9), 16.8–49.3 24.3 (4.8), 18.9–37.7
BMI Male [mean (SD), min-max] 27.5 (4.1), 20.1–32.5 26.8 (2.5), 24.1–29.9
Fracture Risk – FRAX ® [35] 10 year - Major Fracture Probability (%) - FRAX (Canada), no aBMD [mean (SD), min-max] 11.2 (9.9), 1–43 5.9 (4.9), 1–18
10 year - Hip Fracture Probability (%) - FRAX (Canada), no aBMD [mean (SD), min-max] 3.2 (4.2), 0–17 1.0 (1.3), 0.1–5.5
Bone Health - Risk Factors
(Self-Report)
Current Smoker [# (%)] 6 (20%) 1 (3%)
*Current Alcohol (0 to 4, higher score more alcohol consumption) [median, mode (%)] 1, 1 (30%) 2, 1 (37%)
Told in the last five years by any physician that they (may) have osteoporosis [# (%)] 7 (23%) 1 (3%)
Bone Health - Medications/Nutritional Supplements
(Self-Report)
Bone Antiresorptive or Anabolic Medication - Last 5 years [#, (%)] 3 (10%) 0 (0%)
Current Calcium, Vitamin D Supplement Intake [#, (%)] 19 (63%) 13 (43%)
  1. *Current Alcohol Use (alcohol drinks / week): ‘0’ none, ‘1’ <1, ‘2’ 1 to 3, ‘3’ 4 to 7, ‘4’ >7
  2. aBMD = Apparent Bone Mineral Density measured by DXA
  3. Bold indicates a statistically significant difference between RA and NRA participants (Two tailed, Paired Student T-test)