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Table 3 Evolution of pain during the study (100-mm VAS: 0 = no pain, 100 = maximum pain)

From: Intra-articular use of a medical device composed of hyaluronic acid and chondroitin sulfate (Structovial CS): effects on clinical, ultrasonographic and biological parameters

  Visit 3 (one week)(n = 30) Visit 4 (2 weeks)(n = 30) Visit 5 (6 weeks)(n = 29) Visit 6 (12 weeks)(n = 30)
Baseline, mm, mean ± SD 71.3 ± 14.71 71.3 ± 14.71 70.8 ± 14.73 71.3 ± 14.71
Post-baseline, mm, mean ± SD 48.0 ± 20.76 37.3 ± 21.87 31.3 ± 23.76 35.2 ± 24.59
Change, mm, mean ± SD -23.3 ± 22.51 -34.0 ± 26.98 -39.5 ± 29.23 -36.1 ± 28.54
  1. mm = millimetres; n = number of patients; SD = standard deviation.