The Scientific World Journal / 2012 / Article / Tab 1

Clinical Study

Oral Administration of Polymer Hyaluronic Acid Alleviates Symptoms of Knee Osteoarthritis: A Double-Blind, Placebo-Controlled Study over a 12-Month Period

Table 1

Demographic and clinical characteristics of subjects at enrollment.


Number of subjects3030
Age69 ± 169 ± 1
JKOM score
 Total43 ± 246 ± 3
  Pain and stiffness in knees15 ± 116 ± 1
  Condition in daily life16 ± 117 ± 1
  General activities8 ± 19 ± 1
  Health conditions4 ± 04 ± 0
Kellgren and Lawrence grade
 Grade 21313
 Grade 31717
Additional medication
 NSAID, oral administration89
 NSAID, external use1615
 HA, intra-articular injection2328

Results are mean ± SE.

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