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Table 3 Results of the secondary 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

 

Pain VAS

% change of VAS score

  

Mean

SD

P(post vs. pre)

Mean (%)

SD

Difference (%) [IA-HA - NSAID] (95% CI)

IA-HA (n = 97)

Pre-treatment

60.1

22.4

<0.001

-41.2

52.7

-5.2 (-23.8 to 13.4)

Post-treatment

31.8

24.1

NSAID (n = 85)

Pre-treatment

55.5

21.8

<0.001

-36.0

73.8

 

Post-treatment

31.9

23.9

    
  1. The effect of the treatment of either IA-HA or NSAID for the patients with knee OA evaluated by pain VAS score (left) and percentage (%) change of VAS score (right). A P value less than 0.05 was considered to be significant. VAS, visual analog scale; IA, intra-articular; HA, hyaluronic acid; NSAID, non-steroidal anti-inflammatory drug.