Post-hoc analysis
AWD
A post-hoc analysis was performed looking at stratification of baseline AWD. The AWD at baseline was divided into three strata: short, medium and long distances (set at <25 per cent, 25–75 per cent and >75 per cent, respectively) using the descriptive statistics in For patients that could not walk further than 100 m at baseline, there was no clear statistical difference between the two treatment arms, or between type of centre (SET 