Research Article

Efficacy and Safety of Tongning Gel for Knee Osteoarthritis: A Multicentre, Randomized, Double-Blinded, Parallel, Placebo-Controlled, Clinical Trial

Figure 2

Mean change of the WOMAC pain score, (a) and WOMAC total score. (b) The means of outcomes are shown for the TNG group (diamond) and the PC group (square). Measurements were observed at baseline, 1 week, 2 weeks, and 3 weeks after intervention. WOMAC pain score ranges from 0 to 500, and WOMAC total score ranges from 0 to 2400.
(a)
(b)