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Table 2 Results of the primary endpoint of the study

From: Intra-articular hyaluronic acid injection versus oral non-steroidal anti-inflammatory drug for the treatment of knee osteoarthritis: a multi-center, randomized, open-label, non-inferiority trial

  JKOM score % change of JKOM score
   Mean SD P(post vs. pre) Mean (%) SD Difference (%) [IA-HA - NSAID] (95% CI)
IA-HA (n = 98) Pre-treatment 33.8 15.9 <0.001 -34.7 39.6 -2.5 (-14.0 to 9.1)
Post-treatment 21.5 14.6
NSAID (n = 86) Pre-treatment 32.0 14.0 <0.001 -32.2 39.8
  Post-treatment 22.0 15.5     
  1. The effect of the treatment of either IA-HA or NSAID for the patients with knee OA evaluated by JKOM score (left) and percentage (%) change of JKOM score (right). A P value less than 0.05 was considered to be significant. JKOM, Japanese Knee Osteoarthritis Measure; IA, intra-articular; HA. hyaluronic acid; NSAID, non-steroidal anti-inflammatory drug.