Multivariable Association between Predictors and Type of Walking Aids Prescribed.

aOdds Ratios (ORs) with 95% CIs were derived from proportional odds regression on type of walking aids – an ordinal outcome variable of 4 categories (see further explanation in the text). ORs for requiring walking aids with a larger base-of-support were estimated comparing men with women or the 75th (High) with the 25th (Low) percentile for continuous predictors. For example, other variables being equal, increasing the CoP ML-SD variable from its lower quartile (0.22cm) to its higher quartile (0.41cm) was associated with a 2.55-fold (95%CI, 1.23- to 5.30-fold) increase in the odds of requiring walking aides with a larger base-of-support. *Assessed using a visual numeric pain scale (0–10), with higher scores indicating worse knee pain. CoP = center-of-pressure ML = mediolateral SD = standard deviation ° degrees Multivariable Association between Predictors and Type of Walking Aids Prescribed.