OBJECTIVES: The purpose of this study was to examine the construct validity of the Stroke Impact Scale (SIS) using telephone mode of administration. METHODS: Stroke patients were identified using national VA administrative data and ICD-9 codes in 13 participating VA hospitals. Stroke was confirmed by reviewing electronic medical records. Patients were administered SIS by telephone at 12-weeks post-stroke, and administered the Functional Independence Measure (FIM) and SF-36V at 16 weeks post-stroke. The instrument's convergent validity and its ability to differentiate between groups of stroke patients with different disability levels were examined using Pearson's correlations and Kruskal-Wallis one way ANOVA tests. RESULTS: All the relevant relationships yielded high correlation coefficients with statistical significance: 0.86 for FIM-motor vs. SIS-ADL, and 0.77 for PF in SF-36V vs. SIS-PHYSICAL. The SIS presented better score discrimination and distribution for different severity of stroke than FIM and SF-36V without severe ceiling and floor effects. Kruskal-Wallis tests showed the Physical Component Score of SF-36V did not discriminate any disability levels. Physical functioning (PF) in SF-36V, FIM-motor, SIS-PHYSICAL, SIS-16, and SIS-ADL showed better discrimination in person's functioning. The pairwise comparisons showed that SIS-PHYSICAL, SIS-16, and SIS-ADL discriminated more Rankin levels than FIM-motor and PF in SF-36V. CONCLUSIONS: SIS telephone survey had superior convergent validity and was better at differentiating between groups of stroke patients with different disability levels than the FIM and SF-36V with no evidence of ceiling and floor effects. Telephone administration of SIS would be a useful and cost-effective method to follow-up community dwelling veterans with stroke.
OBJECTIVES: The purpose of this study was to examine the construct validity of the Stroke Impact Scale (SIS) using telephone mode of administration. METHODS:Strokepatients were identified using national VA administrative data and ICD-9 codes in 13 participating VA hospitals. Stroke was confirmed by reviewing electronic medical records. Patients were administered SIS by telephone at 12-weeks post-stroke, and administered the Functional Independence Measure (FIM) and SF-36V at 16 weeks post-stroke. The instrument's convergent validity and its ability to differentiate between groups of strokepatients with different disability levels were examined using Pearson's correlations and Kruskal-Wallis one way ANOVA tests. RESULTS: All the relevant relationships yielded high correlation coefficients with statistical significance: 0.86 for FIM-motor vs. SIS-ADL, and 0.77 for PF in SF-36V vs. SIS-PHYSICAL. The SIS presented better score discrimination and distribution for different severity of stroke than FIM and SF-36V without severe ceiling and floor effects. Kruskal-Wallis tests showed the Physical Component Score of SF-36V did not discriminate any disability levels. Physical functioning (PF) in SF-36V, FIM-motor, SIS-PHYSICAL, SIS-16, and SIS-ADL showed better discrimination in person's functioning. The pairwise comparisons showed that SIS-PHYSICAL, SIS-16, and SIS-ADL discriminated more Rankin levels than FIM-motor and PF in SF-36V. CONCLUSIONS: SIS telephone survey had superior convergent validity and was better at differentiating between groups of strokepatients with different disability levels than the FIM and SF-36V with no evidence of ceiling and floor effects. Telephone administration of SIS would be a useful and cost-effective method to follow-up community dwelling veterans with stroke.
Authors: Pamela W Duncan; Dean M Reker; Ronnie D Horner; Gregory P Samsa; Helen Hoenig; Barbara J LaClair; Tara K Dudley Journal: Clin Rehabil Date: 2002-08 Impact factor: 3.477
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Authors: Sabina B Gesell; Cheryl D Bushnell; Sara B Jones; Sylvia W Coleman; Samantha M Levy; James G Xenakis; Barbara J Lutz; Janet Prvu Bettger; Janet Freburger; Jacqueline R Halladay; Anna M Johnson; Anna M Kucharska-Newton; Laurie H Mettam; Amy M Pastva; Matthew A Psioda; Meghan D Radman; Wayne D Rosamond; Mysha E Sissine; Joanne Halls; Pamela W Duncan Journal: BMC Health Serv Res Date: 2019-12-19 Impact factor: 2.655