| Attribute | Schema Datatype or | Usage | Definition | Business Rules |
|---|---|---|---|---|
| OID | oid | Required | Unique identifier for the StudyEstimand element. | The OID attribute value must be unique within the Study/MetaDataVersion. |
| Name | name | Required | Human readable name for the Study Estimand. | The Name attribute must be unique within the Study/MetadataVersion. |
| Level | ( Primary | Secondary | Exploratory ) | Optional | Defined Level for the Study Estimand | These are defined in concordance with the ICH M11 Clinical electronic Structured Harmonised Protocol Specification. |
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