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Qual Life Res. 2007 Oct;16(8):1389-98. Epub 2007 Jul 31.

The Burden of Stroke Scale (BOSS) provided valid, reliable, and responsive score estimates of functioning and well-being during the first year of recovery from stroke.

Author information

  • 1Geriatric Research Education & Clinical Center, VA Pittsburgh Healthcare System, 7180 Highland Drive, Pittsburgh, PA 15206, USA. patrick.doyle@med.va.gov

Abstract

OBJECTIVES:

To examine the reliability, validity, and responsiveness of the Burden of Stroke Scale (BOSS).

STUDY DESIGN:

A prospective cohort of stroke survivors were assessed at 3 (T1, T2), 6 (T3), and 12 (T4) months post onset (MPO) of stroke. Test-retest reliability was evaluated by calculating intra-class correlation coefficients (ICCs) between T1 and T2 scale scores. Convergent validity was evaluated by calculating Pearson product moment correlation coefficients between T1 BOSS, Stroke Impact Scale and MOS SF-36 scale scores assessing similar health concepts. Responsiveness was evaluated using a repeated measures ANOVA and the linear trend test in the full study sample and by calculating standardized response means (SRM) and a probability of change statistic, p between T1, T3, and T4 scale scores in participants demonstrating change on external criteria.

RESULTS:

ICCs ranged from 0.78 to 0.94. Pearson coefficients ranged from -0.57 to -0.86. Moderate to high responsiveness estimates were obtained for 9 of 12 subscales with SRM (p) values ranging from .497 (.690) to 1.161 (.877). Composite scale SRM (p) values ranged from .661 (.746) to 1.192 (.883).

CONCLUSIONS:

The BOSS provided valid and reliable score estimates that were responsive to positive changes in functioning and well-being during the first year of recovery from stroke.

PMID:
17665314
DOI:
10.1007/s11136-007-9247-8
[PubMed - indexed for MEDLINE]
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