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Table 3 Means and standard deviation of major variables measured at baseline and weeks 1, 2 and 4

From: Duhuo Jisheng Tang for treating osteoarthritis of the knee: a prospective clinical observation

Variable definition Baseline Week 1 Week 2 Week 4
WOMAC Scoresa Mean (SD) Mean (SD) Mean (SD) Mean (SD)
   Pain 22.2(19.2) 21.4(20.9) 16.9(16.9) ** 16.1(16.2) **
   Stiffness 28.1(24.9) 25.8(23.1) 17.4(18.5) *** 18.5(20.3) ***
   Physical functioning 22.6(18.0) 22.4(19.5) 18.2(15.8) ** 18.2(17.8) *
Pain in visual analogue scale 38.7(21.5) 33.0(20.7)* 27.0(21.5) *** 27.8(19.8) ***
WHOQOL-BREF Scoresb - - - -
   Physiological domain 12.9(2.4) - - 13.2(1.9)
   Psychological domain 12.4(2.0) - - 12.3(1.5)
   Social domain 13.5(1.9) - - 13.6(2.2)
   Environment domain 13.5(1.7) - - 13.4(1.5)
  1. a WOMAC refers to the Western Ontario and McMaster Universities Osteoarthritis Index.
  2. bWHOQOL – BREF refers to the World Health Organization Quality of Life – brief version.
  3. * indicates P < 0.05; ** indicates P < 0.01; and *** indicates P < 0.001.