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Table 1 Anthropometric characteristics and serum levels of bone turnover markers

From: The relationship between osteoclastogenic and anti-osteoclastogenic pro-inflammatory cytokines differs in human osteoporotic and osteoarthritic bone tissues

  Osteoporosis Osteoarthritis
Age (years) 74.1 ± 7.7 71.8 ± 4.2
Sex (women/men) 17/6 23/8
Body mass index (kg/m 2 ) 24.5 ± 2.3 28.3 ± 4.4**
Hip bone mineral density (g/cm 2 ) 0.726 ± 0.135 0.880 ± 0.140**
Femoral neck BMD (g/cm 2 ) 0.615 ± 0.098 0.757 ± 0.131**
Lumbar spine L2-L4 BMD (g/cm 2 ) 0.861 ± 0.184 0.994 ± 0.193*
CTX (pmol/l) 3078(1285;5391) 3547(2183;4967)
Osteocalcin (μg/l) 6.80(0.30;11.98) 7.90(1.03;17.03)
Cathepsin K (pmol/l) 12.0(10.0;22.1) 9.4(6.7;11.3)*
RANKL (pmol/l) 0.01(0.01;0.02) 0.01(0.01;0.06)
OPG (pmol/l) 5.86(4.52;7.47) 4.42(4.09;5.01)*
  1. BMD bone mineral density. CTX C-terminal crosslinking telopeptides of type I collagen. RANKL receptor activator of nuclear factor κB ligand.
  2. OPG osteoprotegerin.
  3. Values are means ± standard deviation (with the exception of sex) and medians(25th;75th quartile) for bone turnover markers.
  4. Comparisons were assessed with Student's t-test or Mann-Whitney U test, *p < 0.05, **p < 0.001.