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Table 3 Comparison of the mean changes in knee pain scores during the study

From: The effect of curcumin ointment on knee pain in older adults with osteoarthritis: a randomized placebo trial

Pain change Group P value a
Intervention Placebo
First (T1-T2) 1.64 ± 0.79 0.56 ± 0.87 <  0.001
Second (T1-T3) 2.33 ± 1.06 0.58 ± 1.05 < 0.001
P value b 0.002 0.930  
  1. a: Independents samples-test, b: Paired t-test