French validation of the Multiple Sclerosis Work Difficulties Questionnaire (MSWDQ-23) with determination of cutoff scores: A valuable tool in clinical practice.

Work difficulties are a primary issue of multiple sclerosis (MS). This is because disease onset usually occurs during a time when establishing a career and employment is of paramount importance. The MSWDQ-23 (Multiple Sclerosis Work Difficulties Questionnaire) was developed to assess work difficulties in MS.