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Table 1 Patient demographics of knee OA clinical trial

From: Effect of low-intensity long-duration ultrasound on the symptomatic relief of knee osteoarthritis: a randomized, placebo-controlled double-blind study

Patient demographic data
Variable Active ultrasound Placebo ultrasound p
n 51 31  
Sex (M/F) 23/28 16/17 0.115
Age, years 53.6 ± 8.9 51 ± 9.0 0.198
BMI 34.9 ± 8.85 34.5 ± 8.3 0.834