Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-2-9
pubmed:abstractText
The MS Functional Composite (MSFC) is a continuous scale of neurological disability for patients with multiple sclerosis (MS). Cognition is represented by the Paced Auditory Serial Addition Test (PASAT), although the Symbol Digit Modalities Test (SDMT) has been proposed as a promising alternative. MSFC scores were calculated using either the PASAT or the SDMT with the following reference populations: National Multiple Sclerosis Society (NMSS) Task Force, 400 MS patients, and 100 normal controls. A subgroup of 115 patients was followed longitudinally, with a test-retest interval of 2.3 +/- 1.2 years. Pearson correlations were calculated and analyses of variance (ANOVAs) were used to assess relationships among the MSFC components and composite scores, and differences in performance between patients and controls. Longitudinal changes were also assessed. Logistic regression was performed to determine which MSFC scores are most predictive of diagnosis, course, and work disability. All MSFCs had similar test-retest reliability and correlations with other measures including neurological disability, depression, and fatigue. The SDMT showed slightly better validity with respect to predicting diagnosis, course, and work disability, although the amount of variance accounted for was similar for each version of the MSFC. Our data, derived from a large sample of MS patients and normal controls, supports the validity of both PASAT and SDMT versions of the MSFC. Because the SDMT has slightly better predictive validity and has a relatively easier administration procedure, some clinicians and researchers may wish to replace the PASAT with the SDMT in future calculations of the MSFC using the calculation methods provided in this manuscript.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1477-0970
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
228-37
pubmed:meshHeading
pubmed-meshheading:20028710-Adult, pubmed-meshheading:20028710-Case-Control Studies, pubmed-meshheading:20028710-Cognition, pubmed-meshheading:20028710-Cognition Disorders, pubmed-meshheading:20028710-Cross-Sectional Studies, pubmed-meshheading:20028710-Depression, pubmed-meshheading:20028710-Disability Evaluation, pubmed-meshheading:20028710-Disease Progression, pubmed-meshheading:20028710-Fatigue, pubmed-meshheading:20028710-Female, pubmed-meshheading:20028710-Humans, pubmed-meshheading:20028710-Logistic Models, pubmed-meshheading:20028710-Longitudinal Studies, pubmed-meshheading:20028710-Male, pubmed-meshheading:20028710-Middle Aged, pubmed-meshheading:20028710-Motor Activity, pubmed-meshheading:20028710-Multiple Sclerosis, pubmed-meshheading:20028710-Observer Variation, pubmed-meshheading:20028710-Predictive Value of Tests, pubmed-meshheading:20028710-Psychometrics, pubmed-meshheading:20028710-Reproducibility of Results, pubmed-meshheading:20028710-Severity of Illness Index, pubmed-meshheading:20028710-Time Factors
pubmed:year
2010
pubmed:articleTitle
Psychometrics and normative data for the Multiple Sclerosis Functional Composite: replacing the PASAT with the Symbol Digit Modalities Test.
pubmed:affiliation
Department of Neurology, State University of New York (SUNY) at Buffalo School of Medicine, Buffalo, NY, USA.
pubmed:publicationType
Journal Article