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Clinical relevance of single item quality of life indicators in cancer clinical trials
We investigated the hypothesis that global single-item quality-of-life indicators are less precise for specific treatment effects (discriminant validity) than multi-item scales but similarly efficient for overall treatment comparisons and changes over time (responsiveness) because they reflect the s...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2001
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2363885/ https://www.ncbi.nlm.nih.gov/pubmed/11336464 http://dx.doi.org/10.1054/bjoc.2001.1785 |