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The identifier variables associated with the reference values are captured in the STRTMy (Stratum y) variables. The actual values of the STRTMy variables are captured in the  STRVALy (Stratum y Value) variables As many identifiers as necessary based on the source data should be captured in the reference dataset and the order of the stratum variables has no inherent meaning so ordering is not defined in this section. The convention of y is used as an index value indicating an integer with a value of 1-99 (as described in the ADaM standard section). There is no requirement that the stratum variables start with 1, nor must the variables use consecutive values. Some examples of stratum variables are Year, Sex, Race, Age, Transition type, and product.

The source fiel may change over time so capturing the name of the source file either in the dataset or the deifne file allows for traceability back to the source. I f the source name is captured in the dataset then REFSRCE (Reference Data Source) is the variable to use.


Variable NameVariable LabelTypeCodelist/ Controlled TermsCoreCDISC Notes

STRTMy

Stratum y

Char


Req

Indicates stratification factors used when calculating the value of the input parameter. 

STRVALy

Stratum y Value

Char 


Req

Identifies the stratum with which the input parameter is associated.


INPRM

Input Parameter

 Char


Perm

Indicate the calculated input parameter for the stratum or strata.

INPRMVAL

Input Parameter Value

Num


Req

This is the value of the input parameter.

INPRMU

Input Parameter Unit

 Char


Perm

Unit associated with the input parameter value.

REFSRCE

Reference Data Source

Char


Perm

Information identifying the source of the reference data - this may be captured in the dataset or in the define file

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