SDTM.TA

Variable_order	Dataset_name	Variable_name	Variable_label	Type	Codelist	Role	Core	CDISC_notes
1	TA	STUDYID	Study Identifier	Char		Identifier	Req	Unique identifier for a study.
2	TA	DOMAIN	Domain Abbreviation	Char		Identifier	Req	Two-character abbreviation for the domain.
3	TA	ARMCD	Planned Arm Code	Char		Topic	Req	ARMCD is limited to 20 characters and does not have special character restrictions. The maximum length of ARMCD is longer than that for other "short" variables to accommodate the kind of values that are likely to be needed for crossover trials. For example, if ARMCD values for a 7-period crossover were constructed using 2-character abbreviations for each treatment and separating hyphens, the length of ARMCD values would be 20.
4	TA	ARM	Description of Planned Arm	Char		Synonym Qualifier	Req	Name given to an arm or treatment group.
5	TA	TAETORD	Planned Order of Element within Arm	Num		Timing	Req	Number that gives the order of the element within the arm.
6	TA	ETCD	Element Code	Char		Record Qualifier	Req	ETCD (the companion to ELEMENT) is limited to 8 characters and does not have special character restrictions. These values should be short for ease of use in programming, but it is not expected that ETCD will need to serve as a variable name.
7	TA	ELEMENT	Description of Element	Char		Synonym Qualifier	Perm	The name of the element. The same element may occur more than once within an arm.
8	TA	TABRANCH	Branch	Char		Rule	Exp	Condition subject met, at a "branch" in the trial design at the end of this element, to be included in this arm (e.g., "Randomization to DRUG X").
9	TA	TATRANS	Transition Rule	Char		Rule	Exp	If the trial design allows a subject to transition to an element other than the next element in sequence, then the conditions for transitioning to those other elements, and the alternative element sequences, are specified in this rule (e.g., "Responders go to washout").
10	TA	EPOCH	Epoch	Char	C99079	Timing	Req	Name of the trial epoch with which this element of the arm is associated.