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Table 2 VAS scores, WOMAC total scores, WOMAC subscores, and joint space width at 6-month follow-up

From: Efficacy of glucosamine plus diacerein versus monotherapy of glucosamine: a double-blind, parallel randomized clinical trial

Outcome at last follow-up Treatment Mean differences between groups 95 % CI P value
Glucosamine plus diacerein Glucosamine plus placebo
VAS score 2.97 (2.38–3.56) 2.88 (2.29–3.47) 0.09 −0.75, 0.94 0.710
WOMAC scores
 Total 48.59 (38.30–58.89) 48.69 (38.34–59.05) −0.10 −14.95, 14.75 0.990
 Pain 12.02 (9.53–14.52) 11.76 (9.25–14.27) 0.26 −3.34, 3.86 0.887
 Stiffness 3.85 (2.79–4.91) 4.16 (3.07–5.26) −0.32 −1.87, 1.24 0.687
 Function 32.74 (25.70–39.79) 32.74 (25.66–39.82) 0.01 −10.15, 10.16 0.999
 JSW, mm 2.63 (2.41–2.84) 2.59 (2.37–2.81) 0.04 −0.35, 0.27 0.803
  1. Abbreviations: JSW Joint space width, VAS Visual analogue scale, WOMAC Western Ontario and McMaster Universities Osteoarthritis Index