The Multiple Sclerosis Walking Scale is a self-assessment scale which measures the impact of MS on walking. It consists of 12 questions concerning the limitations to walking due to MS during the past 2 weeks. Each item can be answered with 5 options, with 1 meaning no limitation and 5 extreme limitation.

A total score can be generated and transformed to a 0 to 100 scale by subtracting the minimum score possible (12) from the patient’s score, dividing by the maximum score possible minus the minimum possible (60-12 or 48), and multiplying the result by 100. Walking improvement on the MSWS-12 is indicated by negative change scores.

This questionnaire (original English version and all diverse translated versions) is copyrighted, ‘© 2006 University of Plymouth, University College London and Plymouth Hospitals NHS Trust. All Rights Reserved.’ No part of the translated PRO’s may be used for profit or commercial purposes without prior approval from the University of Plymouth, University College London and Plymouth Hospitals NHS Trust and RIMS.

• Hobart JC, Riazi A, Lamping DL, Fitzpatrick R, Thompson AJ. Measuring the impact of ms on walking ability: The 12-item ms walking scale (msws-12). Neurology. 2003;60:31-36