This 48-week mean change between the 2 groups did not reach statistical significance ( P = .44), and the between-group 48-week difference of –31.7 μm (95% CI, –129.0 μm to 65.7 μm) did not meet the predefined threshold.
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Effect of Pulsed Low-Intensity Ultrasonography on Symptom Relief and Tibiofemoral Articular Cartilage Thickness Among Veterans Affairs Enrollees With Knee Osteoarthritis: A Randomized Clinical Trial.
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0.4400
0.4400