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Varying the item format improved the range of measurement in patient-reported outcome measures assessing physical function
BACKGROUND: Physical function (PF) is a core patient-reported outcome domain in clinical trials in rheumatic diseases. Frequently used PF measures have ceiling effects, leading to large sample size requirements and low sensitivity to change. In most of these instruments, the response category that i...
Autores principales: | Liegl, Gregor, Gandek, Barbara, Fischer, H. Felix, Bjorner, Jakob B., Ware, John E., Rose, Matthias, Fries, James F., Nolte, Sandra |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5359818/ https://www.ncbi.nlm.nih.gov/pubmed/28320462 http://dx.doi.org/10.1186/s13075-017-1273-5 |
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