These outcome measures assess global disability on the activity and participation levels and are strongly influenced by a person’s walking ability, the ability to perform a transfer, and cognitive function. The cutoff value of Kierkegaard et al3 can be used to differentiate people with MS and no impaired upper limb dysfunction from people with MS and minimally
impaired upper limb dysfunction; our proposed cutoff value differentiates people with MS and different levels of upper limb dysfunction. Further research regarding the clinical use of cutoff values to differentiate people with MS and different upper limb disability levels, as is done for people with stroke,18 is required.