Ignorability and bias in clinical trials
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Daniel F. Heitjan
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Article
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1999
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John Wiley and Sons
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English
โ 123 KB
๐ 2 views
Patient non-compliance and drop-out can bias analyses of clinical trial data. I describe a parametric model for treatment cross-over and drop-out and demonstrate how the concept of ignorability, originally de"ned for incomplete-data problems, can elucidate sources of bias in clinical trials. I discu