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Multiple Sclerosis Impact Scale (MSIS-29): reliability and validity in hospital based samples.

Riazi, A; Hobart, JC; Lamping, DL; Fitzpatrick, R; Thompson, AJ; (2002) Multiple Sclerosis Impact Scale (MSIS-29): reliability and validity in hospital based samples. J Neurol Neurosurg Psychiatry , 73 (6) pp. 701-704.

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Abstract

BACKGROUND AND AIM: The psychometric properties of rating scales are sample dependent and need evaluations in different samples. The Multiple Sclerosis Impact Scale (MSIS-29), a new patient based rating scale for multiple sclerosis (MS) was predominantly developed from a community based sample derived from the MS Society. A number of important patient characteristics of this sample remain unknown. The aim of the study was to evaluate five psychometric properties of the MSIS-29 in three hospital based samples: people admitted for rehabilitation, people admitted for intravenous corticosteroid treatment for MS relapses, and people with primary progressive MS. METHODS: People with MS were recruited from the three clinical settings. They completed several health measures. MSIS-29 data were evaluated for data quality, scaling assumptions, acceptability, reliability and validity, and compared with those from a previously reported community based study. RESULTS: A total of 233 people (rehabilitation p=53; corticosteroids p=76; primary progressive p=104) completed questionnaires. In all samples, missing data were low (<or=2.2%), scaling assumptions were satisfied, and reliability was high (>or=0.91). Correlations between the MSIS-29 and other scales were consistent with a priori hypotheses. Findings were consistent with those from the community samples. CONCLUSIONS: The psychometric properties of the MSIS-29 are consistent across three hospital based samples, and similar to those in the community samples. These findings further support its use as an outcome measure in different clinical settings.

Type: Article
Title: Multiple Sclerosis Impact Scale (MSIS-29): reliability and validity in hospital based samples.
Location: England
Keywords: Adolescent, Adrenal Cortex Hormones, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Multiple Sclerosis, Chronic Progressive, Multiple Sclerosis, Relapsing-Remitting, Patient Admission, Psychometrics, Quality of Life, Reproducibility of Results, Sickness Impact Profile
UCL classification: UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Brain Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/147586
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