Page History
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Variable Name
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Variable Label
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Type
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Codelist/ Controlled Terms
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Core
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CDISC Notes
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STUDYID
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Study Identifier
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Char
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Req
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DM.STUDYID, ADSL STUDYID, and/or STUDYID from another ADaM or SDTM dataset appropriate to the analysis.
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USUBJID
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Unique Subject Identifier
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Char
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Req
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DM.USUBJID, ADSL.USUBJID, and/or USUBJID from another ADaM or SDTM dataset appropriate to the analysis.
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SUBJID
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Subject Identifier for the Study
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Char
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Perm
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DM.SUBJID, ADSL.SUBJID, and/or SUBJID from another ADaM dataset appropriate to the analysis. SUBJID is required in ADSL, but permissible in other datasets.
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SITEID
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Study Site Identifier
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Char
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Perm
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DM.SITEID, ADSL.SITEID, and/or SITEID from another ADaM dataset appropriate to the analysis. SITEID is required in ADSL, but permissible in other datasets.
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ASEQ
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Analysis Sequence Number
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Num
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Perm
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Sequence number given to ensure uniqueness of subject records within an ADaM dataset. As long as values are unique within a subject within the dataset, any valid number can be used for ASEQ. ASEQ uniquely indexes records within a subject within an ADaM dataset.
ASEQ is useful for traceability when the dataset is used as input to another ADaM dataset. To refer to a record in a predecessor ADaM dataset, set SRCDOM to the name of the predecessor dataset, and set SRCSEQ to the value of ASEQ in the predecessor dataset.
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