[Quality of life and multiple sclerosis: validation of the french version of the self-questionnaire (SEP-59)].

We conducted a prospective study among 166 multiple sclerosis (MS) patients (103 from an university hospital, 63 from a MS rehabilitation center) to assess the properties of the French version of the Multiple Sclerosis Quality Of Life - 54 items (MS QOL-54) which combines the MOS SF36 together with MS specific items. The SF-36 had been translated into French through the IQOLA project. We translated and adapted the MS specific items with the help of three different teams. The translation into French has an addition of five items, because we kept the MS specific items of an earlier unpublished form. Acceptability is excellent with a response rate over 90p.100. Test-retest reliability is good except for the "role limitation-emotional" scale of the SF-36. Construct validity, based on factor analysis, shows no change in the SF-36 internal consistency and the specific items provided their own information. External validity, tested against both medical (Expanded Disability Status Scale, Kurtzke scale, Mini-Mental-State and disease stage) and rehabilitation (Functional Independence Measure) parameters is excellent. The French MS QOL questionnaire contains 59 items including both the SF-36 and the MS QOL-54 items. This will permit international comparisons of MS patients' care and therapy.