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Table 2 Anabolic and catabolic bone changes in healthy controls (HC), patients with psoriasis (PSO) and patients with psoriatic arthritis (PsA)

From: Simultaneous quantification of bone erosions and enthesiophytes in the joints of patients with psoriasis or psoriatic arthritis - effects of age and disease duration

A. Effects of age
N HC PSO PsA
(18/22/7) (11/36/8) (20/55/26)
Number of enthesiophytes
 20–40 years 2.41 ± 1.94 5.00 ± 2.49 7.50 ± 5.65
 41–60 years 3.29 ± 1.77 6.00 ± 3.50 9.09 ± 6.20
  > 60 years 3.86 ± 1.22 3.71 ± 1.98 11.96 ± 7.71
Number of erosions
 20–40 years 0.12 ± 0.33 0.27 ± 0.90 1.05 ± 1.82
 41–60 years 0.33 ± 0.48 0.50 ± 0.94 1.26 ± 1.87
  > 60 years 1.29 ± 0.95 0.86 ± 1.07 2.00 ± 2.95
Size of enthesiophytes (mm)
 20–40 years 1.44 ± 1.10 3.37 ± 1.61 5.26 ± 5.56
 41–60 years 2.24 ± 1.15 4.40 ± 2.37 6.33 ± 4.96
  > 60 years 2.69 ± 0.74 3.01 ± 1.56 8.82 ± 6.70
Volume of erosions (mm3)
 20–40 years 0.06 ± 0.20 0.28 ± 0.91 1.92 ± 3.61
 41–60 years 0.53 ± 1.08 0.99 ± 2.25 2.95 ± 5.71
  > 60 years 4.84 ± 6.31 1.99 ± 3.33 5.27 ± 12.58
B. Effects of disease duration
N PSO in PSO PSO in PsA PSA in PsA
(27/21/7) (40/40/21) (78/17/6)
Number of enthesiophytes
 0–10 years 5.50 ± 2.49 7.91 ± 3.82 8.72 ± 5.33
 11–20 years 4.80 ± 2.14 10.72 ± 7.88 10.13 ± 8.36
  > 20 years 6.60 ± 4.56 11.00 ± 8.26 18.17 ± 10.93
Number of erosions
 0–10 years 0.67 ± 1.11 0.71 ± 1.45 1.31 ± 2.17
 11–20 years 0.53 ± 0.92 1.33 ± 2.17 1.06 ± 1.81
  > 20 years 0.20 ± 0.45 2.65 ± 2.82 3.50 ± 2.67
Size of enthesiophytes (mm)
 0–10 years 4.07 ± 1.67 5.33 ± 3.20 6.05 ± 4.59
 11–20 years 3.21 ± 1.49 7.65 ± 6.60 7.61 ± 6.96
  > 20 years 5.09 ± 3.19 8.38 ± 7.24 13.59 ± 9.71
Volume of erosions (mm3)
 0–10 years 1.21 ± 2.61 1.57 ± 3.16 2.71 ± 5.01
 11–20 years 1.03 ± 2.29 3.08 ± 9.75 4.87 ± 14.36
  > 20 years 0.18 ± 0.39 6.72 ± 9.24 7.44 ± 11.41
  1. N numbers of subjects in the three different age categories