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- To collect data using controlled terms (e.g., Mild, Moderate, Severe)
- When appropriate a subset of a terms may be used rather than all available terms.
- To ask a specific question on the CRF (e.g., Temperature)
- To create a variable name in the database (e.g., TEMP for the collection of vital sign data when a unique variable name must be created for each vital sign result)
In tabulation datasets,
Controlled terminology is specified in domain tables and is expected to be used. The following is appliable when implementing controlled terminology in tabulation datasets.
- Terms from controlled terminology should be in the case that appears the source
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- codelist or
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- code system
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- .
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Storing topic variables for general domain models
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Overview
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