From: The Visual Analogue WOMAC 3.0 scale - internal validity and responsiveness of the VAS version
Raw (ordinal data): scores are divided by 2 so scores can range from 0-50 | Mean | SD | Range | Wilcoxon Signed Ranks test | Standardised Response Mean | |
---|---|---|---|---|---|---|
 |  |  |  | Z | P-value |  |
Pre Pain score | 27.23 | 8.45 | 5.30 to 47.40 | -6.543 | <0.001 | 0.55 |
Post Pain score | 22.43 | 10.41 | 0 to 45.90 | Â | Â | Â |
Pre Physical Functioning score | 27.99 | 8.99 | 2.53 to 46.12 | -5.187 | <0.001 | 0.49 |
Post Physical Functioning score | 24.47 | 9.99 | 2.79 to 47.62 | Â | Â | Â |
Pre Stiffness score | 30.66 | 10.6 | 1.50 to 49.75 | -4.531 | <0.001 | 0.43 |
Post Stiffness score | 27.08 | 11.45 | 0.25 to 47.25 | Â | Â | Â |
Rasch transformed (interval data): the unit is in logits | Mean | SD | Range | Paired t-test | Standardised Response Mean | |
 |  |  |  | Z | P-value |  |
Pre Pain score | 0.069 | 0.177 | -0.503 to 1.010 | 4.802 | <0.001 | 0.35 |
Post Pain score | -0.051 | 0.348 | -4.410 to 0.510 | Â | Â | Â |
Pre Physical Functioning score | 0.043 | 0.168 | -0.717 to 0.631 | 4.465 | <0.001 | 0.37 |
Post Physical Functioning score | -0.01 | 0.181 | -0.740 to 0.850 | Â | Â | Â |
Pre Stiffness score | 0.121 | 0.305 | -0.905 to 1.971 | 4.627 | <0.001 | 0.34 |
Post Stiffness score | 0.026 | 0.297 | -1.446 to 0.939 | Â | Â | Â |