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Response to ‘Does inflammation predict radiographic progression in hand osteoarthritis?’ by Li et al
  1. Alexander Mathiessen,
  2. Barbara Slatkowsky-Christensen,
  3. Tore K Kvien,
  4. Hilde Berner Hammer,
  5. Ida K Haugen
  1. Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
  1. Correspondence to Dr Alexander Mathiessen, Department of Rheumatology, Diakonhjemmet Hospital, PO Box 23, Vinderen, Oslo 0319, Norway; alexander_mathiessen{at}

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Dear Editor,

We highly appreciate the interest Li and Liu1 show in our paper in their eLetter.

The concern of Drs Li and Liu is the low number of patients with inflammation in our cohort, and they suggest carefulness when interpreting the results. Unfortunately, Li and Liu have misunderstood the results when stating that “synovitis and power Doppler were found only in 16.6% and 2.5% of the 78 included participants respectively”. These numbers are found in table 1 and refer to the number of affected joints, not patients. 2 The high prevalence of synovitis at patient level is reported in the Results section, second paragraph: ‘At baseline, …

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