Page History
...
Variable Name
...
Variable Label
...
Type
...
Codelist/ Controlled Terms
...
Core
...
CDISC Notes
...
DTYPE
...
Derivation Type
...
Char
...
(DTYPE)
...
Cond
...
Analysis value derivation method. DTYPE is used to denote, and must be populated, when the value of AVAL or AVALC has been imputed or derived differently than the other analysis values within the parameter. DTYPE is required to be populated even if AVAL and AVALC are null on the derived record.
Three common situations when DTYPE should be populated:
· A new row is added within a parameter with the analysis value populated based on other rows within the parameter.
· A new row is added within a parameter with the analysis value populated based on a constant value or data from other subjects.
· An analysis value (AVAL or AVALC) on an existing record is being replaced with a value based on a pre- specified algorithm.
DTYPE is used to denote analysis values that are "special cases" within a parameter. For each value of DTYPE, the precise derivation algorithm must be defined in analysis variable metadata, even for DTYPE values in the CDISC Controlled Terminology. The controlled terminology for DTYPE is extensible.
Some examples of DTYPE values:
- LOCF = last observation carried forward
- WOCF = worst observation carried forward
- AVERAGE = average of values
...
| Include Page | ||||
|---|---|---|---|---|
|
...
Variable Name
...
Variable Label
...
Type
...
Codelist/ Controlled Terms
...
Core
...
CDISC Notes
...
AWRANGE
...
Analysis Window Valid Relative Range
...
Char
...
Perm
...
The range of values that are valid for a given analysis timepoint (a given value of AVISIT). For example, "5-9 DAYS".
...
AWTARGET
...
Analysis Window Target
...
Num
...
Perm
...
The target or most desired analysis relative day (ADY) value or analysis relative time (ARELTM) value for a given value of AVISIT.
...
AWTDIFF
...
Analysis Window Diff from Target
...
Num
...
Perm
...
Absolute difference between ADY or ARELTM and AWTARGET. It will be necessary to adjust for the fact that there is no Day 0 in the event that ADY and AWTARGET are not of the same sign.
If the sign of the difference is important, then AWTDIFF might have to be used in conjunction with ADY or ARELTM and possibly AWTARGET when choosing among records.
...
AWLO
...
Analysis Window Beginning Timepoint
...
Num
...
Perm
...
The value of the beginning timepoint (inclusive) needs to be used in conjunction to AWRANGE. For example, if AWRANGE is "5-9 DAYS", then AWLO is "5".
...
AWHI
...
Analysis Window Ending Timepoint
...
Num
...
Perm
...
The value of the ending timepoint (inclusive) needs to be used in conjunction to AWRANGE. For example, if AWRANGE is "5-9 DAYS", then AWHI is "9".
...
AWU
...
Analysis Window Unit
...
Char
...
Perm
...
| Pagenav |
|---|
Overview
Content Tools