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Table 3 Secondary outcome measures obtained for subgroups of patients

From: Comparative, double-blind, controlled study of intra-articular hyaluronic acid (Hyalubrix®) injections versus local anesthetic in osteoarthritis of the hip

Secondary outcome measure Patient subgroup Baseline 3 months 6 months
Pain visual analogic scale Hyalubrix® group 6.4 ± 1.94 4.3 ± 2.58a 4.5 ± 1.96a
  Mepivacaine group 6.0 ± 1.34 4.5 ± 2.63 5.0 ± 2.41
NSAID consumption Hyalubrix® group 8.5 ± 3.6 2.1 ± 0.4 1.5 ± 0.5
  Mepivacaine group 6.9 ± 2.2 5.5 ± 3.0 2.3 ± 1.0
Global physician assessment Hyalubrix® group 5.5 ± 1.58 4.4 ± 1.49 4.0 ± 1.51
  Mepivacaine group 5.1 ± 1.41 4.5 ± 1.61 4.3 ± 1.61
Global patient assessment Hyalubrix® group 6.1 ± 2.07 4.5 ± 2.31 4.0 ± 2.06
  Mepivacaine group 5.7 ± 1.68 4.7 ± 2.33 4.9 ± 2.01
  1. All values reached statistical significance when compared with baseline values aPain visual analogic scale showed statistical significance also when comparing values obtained in the two subgroups of therapy (P < 0.05). NSAID, nonsteroidal anti-inflammatory drug.