Table 4 Association between time of disease (psoriasis and arthritis) and acute and chronic changes of sacroiliitis according to the Mann–Whitney test.

From: Prevalence of sacroiliitis and acute and structural changes on MRI in patients with psoriatic arthritis

Time of disease

Acute

Chronic

∆%

p value

Arthritis

6.0 (4.0–12.0)

8.5 (4.0–16.0)

41.7

0.322

Psoriasis

5.0 (0.0–11.0)

18.0 (15.0–28.0)

260.0

0.006

  1. Source: the authors (2019).
  2. ∆%: percentage variation.
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